{"id":3845,"date":"2022-04-01T08:07:44","date_gmt":"2022-04-01T06:07:44","guid":{"rendered":"https:\/\/stendker.com\/?page_id=3845"},"modified":"2023-06-30T12:27:59","modified_gmt":"2023-06-30T10:27:59","slug":"hilfe-center","status":"publish","type":"page","link":"https:\/\/stendker.com\/en\/hilfe-center\/","title":{"rendered":"useful information"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Guide to keeping and caring for our animals<\/p>\n<p style=\"text-align: justify;\">Since there are very different husbandry recommendations, especially in the area of discus fish, since discus fish from other breeders or wild-caught fish also have different husbandry recommendations, we have made our ONLINE book available to you free of charge on our homepage for our German offspring STENDKER discus fish. We want our STENDKER discus fish to feel comfortable in your home, stay healthy and give you pleasure for a long time.<\/p>\n<p style=\"text-align: justify;\">Our handbook contains valuable tips from aquaristics in general, food and maintenance recommendations for our STENDKER discus fish and much more. We have tried to formulate these instructions in a way that everyone can understand.<\/p>\n<p style=\"text-align: justify;\">Good preparation is crucial for a good start.<br \/>\nIf you cannot find the answers to your questions, we would be happy to help you in one of our numerous STENDKER Facebook groups.<\/p>\n<p style=\"text-align: justify;\">We hope you enjoy reading.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><\/div><\/div><\/div><\/div><div data-vc-full-width=\"true\" data-vc-full-width-temp=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div id=\"ultimate-heading-47036a80415348321\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-47036a80415348321 uvc-1821\" data-hspacer=\"line_with_icon\" data-hline_width=\"280\" data-hicon_type=\"custom\" data-hborder_style=\"solid\" data-hborder_height=\"1\" data-hborder_color=\"#545454\" data-icon_width=\"35\" data-hfixer=\"10\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-47036a80415348321 h2'  data-responsive-json-new='{\"font-size\":\"desktop:35px;tablet:33px;tablet_portrait:34px;mobile_landscape:15px;mobile:13px;\",\"line-height\":\"\"}' ><h2 style=\"--font-weight:theme;color:#545454;\">The discus fish<\/h2><\/div><div class=\"uvc-heading-spacer line_with_icon\" style=\"top\"><div class=\"ult-just-icon-wrapper\"><div class=\"align-icon\" style=\"text-align:center;\">\n<div class=\"aio-icon-img\" style=\"font-size:35px;display:inline-block;\" >\n\t<img data-recalc-dims=\"1\" decoding=\"async\" class=\"img-icon\" alt=\"null\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/2022\/03\/Diskuszucht-Stendker.png?w=1200&#038;ssl=1\"\/>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div class=\"vc_tta-container\" data-vc-action=\"collapse\"><div class=\"vc_general vc_tta vc_tta-tabs vc_tta-color-peacoc vc_tta-style-modern vc_tta-shape-rounded vc_tta-spacing-1 vc_tta-o-no-fill vc_tta-tabs-position-left vc_tta-controls-align-left\"><div class=\"vc_tta-tabs-container\"><ul class=\"vc_tta-tabs-list\" role=\"tablist\"><li class=\"vc_tta-tab vc_active\" data-vc-tab role=\"presentation\"><a href=\"#1648791625503-41d9d89c-64ec33e8-329e47fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791625503-41d9d89c-64ec33e8-329e47fd-34bf\"><span class=\"vc_tta-title-text\">1. The discus fish in general<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648798623528-c0973df6-b25333e8-329e47fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648798623528-c0973df6-b25333e8-329e47fd-34bf\"><span class=\"vc_tta-title-text\">2. Discus cichlid behavior<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648798913411-59378281-0a3a33e8-329e47fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648798913411-59378281-0a3a33e8-329e47fd-34bf\"><span class=\"vc_tta-title-text\">3. Height and age information<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688118674280-db483030-493347fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688118674280-db483030-493347fd-34bf\"><span class=\"vc_tta-title-text\">4. Aquarium beginners<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688118675771-3af5cfdd-b99647fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688118675771-3af5cfdd-b99647fd-34bf\"><span class=\"vc_tta-title-text\">5. Aquarium size fish stock<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688118676375-6ef06171-bd6647fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688118676375-6ef06171-bd6647fd-34bf\"><span class=\"vc_tta-title-text\">6. Feed dosage and thawing instructions<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688118676958-26dcda9e-584147fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688118676958-26dcda9e-584147fd-34bf\"><span class=\"vc_tta-title-text\">7. Feeding<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688118677633-c4b87387-6bf747fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688118677633-c4b87387-6bf747fd-34bf\"><span class=\"vc_tta-title-text\">8. Plants<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688118678418-047ba6fe-f56e47fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688118678418-047ba6fe-f56e47fd-34bf\"><span class=\"vc_tta-title-text\">9. Associated fish<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688119615534-385286a2-3a2c47fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688119615534-385286a2-3a2c47fd-34bf\"><span class=\"vc_tta-title-text\">10. Floor cleaning<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688119697664-0e700d61-33be47fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688119697664-0e700d61-33be47fd-34bf\"><span class=\"vc_tta-title-text\">11. Buying Tips<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688119757715-c4ea080f-014747fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688119757715-c4ea080f-014747fd-34bf\"><span class=\"vc_tta-title-text\">12.FAQs<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688119787890-b175ec16-b33f47fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688119787890-b175ec16-b33f47fd-34bf\"><span class=\"vc_tta-title-text\">13. Main Tips<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1688119848525-ed706644-4dd947fd-34bf\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1688119848525-ed706644-4dd947fd-34bf\"><span class=\"vc_tta-title-text\">14. Key Notices<\/span><\/a><\/li><\/ul><\/div><div class=\"vc_tta-panels-container\"><div class=\"vc_tta-panels\"><div class=\"vc_tta-panel vc_active\" id=\"1648791625503-41d9d89c-64ec33e8-329e47fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791625503-41d9d89c-64ec33e8-329e47fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">1. The discus fish in general<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">The discus fish belongs to the genus of cichlids, originally comes from the Amazon region in South America and is also often referred to as the &quot;king of freshwater aquaristics&quot;. It comes as wild caught, Asian offspring, or German offspring.<br \/>\nOur STENDKER discus fish can live up to 15 years, reach a size of up to 21 centimeters and are considered fully grown at the age of 2-2 \u00bd years. The discus fish loves the sociability of its conspecifics (cichlid behavior) and should therefore be kept either in pairs (however, the pair should already be at least 14 centimeters in size) or in a group of at least ten animals.<br \/>\nIts natural habitat consists of sandy soil and roots, under which it likes to hide in a group. The discus fish also feels very comfortable in a planted aquarium (it often has a nicer habitat there than in the wild).<br \/>\nOur STENDKER discus fish are used to German tap water, are easy to keep and can therefore no longer be compared with the wild-caught fish. With our STENDKER discus fish, it is also possible for aquarium beginners to keep discus fish successfully! We offer our German discus offspring as STENDKER discus fish in various sizes (5-20 cm) and in 21<br \/>\ndifferent color shades.<br \/>\n<strong>Our water values for keeping our STENDKER discu fish:<\/strong><br \/>\nTotal Hardness (GH)15<br \/>\nCarbonate hardness (KH) 8<br \/>\nPH value 7<br \/>\nConductance 800\u00b5S<br \/>\nWater temperature 28-30 degrees Celsius<\/p>\n<p>The discus fish is considered a food specialist. Feeding discus fish is extensive, healthy and very easy with our own feed mixture, which you can also purchase as STENDKER discus frozen food in retail stores. Our discus feed is ideally suited as a complete feed and is also fed exclusively to our discus fish in the breeding farm.<br \/>\nThis good and balanced feed mixture contributes significantly to maintaining the health, colourfulness, reproduction and growth of the discus fish.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648798623528-c0973df6-b25333e8-329e47fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648798623528-c0973df6-b25333e8-329e47fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">2. Discus cichlid behavior<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\"><strong>Discus fish belong to the group of cichlids and should therefore be kept in a group of at least 10 animals! (Exception: pair keeping\/breeding):<\/strong><br \/>\nThe typical behavior of these cichlids is that a dominant animal tends to develop in a smaller group. This animal attacks all other discus fish, often resulting in the weakest animal being kept away from food, becoming emaciated, standing in the dark corner, isolated from the group and even dying. After that, the next weaker animal is kept away from the food. To stop this behavior, we recommend simply increasing stocking density until group aggression subsides. Experience has shown that the discus fish behave from one<strong> Group size of at least 10 animals<\/strong> peaceful. <strong>This behavior is known in African cichlids (e.g. Malavi, Tangajika). The discus fish is a South American cichlid with similar behavior!<\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648798913411-59378281-0a3a33e8-329e47fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648798913411-59378281-0a3a33e8-329e47fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">3. Height and age information<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">5cm - 2 months<br \/>\n6cm - 3 months<br \/>\n8cm - 4 months<br \/>\n10cm - 6 months<br \/>\n12cm - 9 months<br \/>\n14cm - 12 months<br \/>\n15cm - 18 months<br \/>\n17cm - 24 months<br \/>\nIf kept well, discus fish can live up to 15 years and reach a diameter of 21 centimetres! At about 2-2 1\/2 years discus fish are considered fully grown! In order to achieve even growth of our discus fish, we recommend feeding them 3 times a day with our STENDKER discus food.<\/p>\n<p><blockquote class=\"wp-embedded-content\" data-secret=\"3jHyVzK0x8\"><a href=\"https:\/\/stendker.com\/en\/diskusfutter\/\">discus food<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&quot;Discus food&quot; \u2014 Discuszucht Stendker GmbH &amp; Co. KG\" src=\"https:\/\/stendker.com\/diskusfutter\/embed\/#?secret=InCpEBuUKo#?secret=3jHyVzK0x8\" data-secret=\"3jHyVzK0x8\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688118674280-db483030-493347fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688118674280-db483030-493347fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">4. Aquarium beginners<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">The discus aquarium for aquaristic beginners<br \/>\nA very simple and uncomplicated way to keep discus is to place a group of 10 or more small (6.5-10 cm) discus in a standard 1 meter aquarium. This aquarium size is ideal for rearing young fish. The easiest way to successfully keep a discus aquarium is to do without companion fish and real plants (risk of disease introduction). Ideally, however, the animals are transferred to a larger aquarium after a certain time and when they have reached a certain size.<\/p>\n<p>Aquarium equipment should consist of:<br \/>\n\u2013 lighting<br \/>\n\u2013 2 filters (e.g. foam block filter, or a hamburger mat)<br \/>\n\u2013 1 heating rod<br \/>\n\u2013 1 night light<br \/>\n\u2013 1 membrane pump for oxygen supply<br \/>\n\u2013 Timer to control the light<br \/>\n\u2013 thermometers<br \/>\n\u2013 Measuring drops (nitrite, PH)<\/p>\n<p style=\"text-align: justify;\">Many pet shops already offer inexpensive complete aquarium packages. You are also welcome to use some substrate (sand) and\/or artificial plants. All<br \/>\nBefore placing them in the aquarium, soak the furnishings well, rinse them off and wash them out. Be careful not to use sharp objects. root<br \/>\nsand down beforehand and remove sharp edges to avoid injuring the discus fish. To beautify the aquarium, there are now numerous beautiful artificial plants on the market that can hardly be distinguished from real plants. (with real plants you should work with a CO2 system.)<br \/>\nPreparation of the appropriate water values and commissioning (preparation time approx. 2-4 weeks)<\/p>\n<p style=\"text-align: justify;\">Finally, we recommend using a piece of filter sponge to clean the panes (coarse-pored), especially in an aquarium with a curved pane. In this way, &quot;discus aquarium for aquaristic beginners&quot; does not get any ugly scratches in the front pane, as can happen with the blade scraper. Buckets and aquarium accessories should be free of soap and cleaning agent residues and should ideally only be used for the aquarium. Thoroughly remove soap and cream residue from your hands before you reach into the aquarium! If you come into contact with the fish, please wet your hands beforehand!<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688118675771-3af5cfdd-b99647fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688118675771-3af5cfdd-b99647fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">5. Aquarium size fish stock<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Recommendation aquarium size fish stock<br \/>\nYou should choose one of the following four options when holding the discus<br \/>\ndecide:<br \/>\n1 discus breeding (pair keeping)<br \/>\nFor breeding discus fish, we recommend an aquarium size of 150 liters (60 cm x 50 cm x 50 cm). The young fish should be 12-14 days old<br \/>\nParents are separated as at this point they may start foraging on the bottom of the tank and ingest pathogens.<br \/>\n2 pair of discus with companion fish, in the planted aquarium For this you need an aquarium size of at least 180 liters (100 cm x 40 cm x 45 cm). We recommend an aquarium size of 250 liters (100 cm x 50 cm x 50 cm). For keeping in pairs, the pair should be at least 14 cm tall, because two individual, smaller fish are difficult to grow because there is no jealousy about food.<br \/>\n3 discus rearing or group husbandry<br \/>\nAn aquarium of 180 liters (100 cm x 40 cm x 45 cm) is already suitable for rearing a discus group (with at least 10 animals). for 10<br \/>\nHowever, we recommend an aquarium size of at least 300 liters for adult animals.<br \/>\n4 groups in a planted aquarium with companion fish<br \/>\nWe recommend a minimum aquarium size of 400 liters for 10 adult discus fish including companion fish and plants.<br \/>\nSee also: (cichlid behavior, discus plants, discus fish companions)<br \/>\nOur tips:<br \/>\n1. Decide in advance to keep discus groups or discus pairs (as listed under 1-4 below) and lie on wild caught,<br \/>\nAsian offspring, or our STENDKER discus fish and stick with it (do not mix!).<br \/>\n2. Prepare everything calmly for the new entry until you have reached the optimal water parameters for our discus fish. (LINK: retract filter)<br \/>\n3. Determine the plants and fish stock generously once and refrain (due to the risk of disease introduction) from later restocking \u201caquarium size fish stock (exception: our STENDKER discus fish can be restocked at any time without hesitation.)<br \/>\n4. Feeding 3 times a day, ideally with our original STENDKER discus feed, which is ideally suited as a complete discus feed solution and<br \/>\nalso eaten by other fish. (Feed dosage-Feed instructions)<br \/>\n5. 1 weekly water change 1\/3 with cold water! (water change)<br \/>\n6. The ideal keeping temperature for discus fish is 28-30\u00b0 Celsius. 12 hour light control with a timer and night light is recommended (to help with orientation and to avoid being startled).<br \/>\n7. Tip for holidays can be found under (LINK: Holidays).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688118676375-6ef06171-bd6647fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688118676375-6ef06171-bd6647fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">6. Feed dosage and thawing instructions<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>Food dosage and thawing instructions for our STENDKER frozen discus food:<br \/>\n<strong>Important instructions:<\/strong><br \/>\n\u2013 Be sure to thaw our food before feeding it! Frozen food can<br \/>\nintestinal obstruction of the discus fish!<br \/>\n\u2013 Do not defrost in the sieve under running water, as important nutrients would be washed out!<br \/>\n\u2013 Leftover food should be sucked out of the aquarium after 10 minutes at the latest, since<br \/>\notherwise the water quality will be affected.<br \/>\n<strong>Food thawing instructions:<\/strong><br \/>\nTake about as much frozen food from the freezer as you need for 1-2 days 3 times a day<br \/>\nfeeding for your discus fish.<br \/>\nTip: the 500 g bars can be easily portioned with rose scissors. Take one<br \/>\nFreezer box with lid and put the still frozen discus food the evening before, for<br \/>\nthaw gently, in your refrigerator. This keeps the firm consistency.<br \/>\n<strong>Feed dosage of our STENDKER discus feed Good Heart:<\/strong><br \/>\nOur food is ideally suited as a complete food, please do not feed too much and absolutely<br \/>\nthaw beforehand. For 10 discus fish with a size of :<br \/>\n\u2013 6.5 to 12 cm, about \u00bd-1 blister (2.5-5 grams) per meal, i.e. 7.5-15 grams a day.<br \/>\n\u2013 12 to 18 cm, about 1-1 1\/2 blisters (5-7.5 grams) per meal, i.e. 15-22.5 grams a day<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688118676958-26dcda9e-584147fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688118676958-26dcda9e-584147fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">7. Feeding<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\"><strong>Feeding and food for our STENDKER discus fish<\/strong><\/p>\n<p style=\"text-align: justify;\">Our tip for simple and comprehensive feeding of discus fish:<br \/>\nContinue to feed our discus fish 3 times a day with our STENDKER discus food. It has proven itself as a complete feed in our discus farm for more than 47 years. Our food is also eaten by other fish. (Available as frozen food from pet shops)<br \/>\n<strong>dosing and feeding<\/strong><br \/>\nPlease feed your fish 3 times a day with our STENDKER discus food.<br \/>\n1 x in the morning (1 hour after the light is switched on)<br \/>\n1 x midday (always at the same time if you like)<br \/>\n1 x in the evening (2 hours before the light is switched off).<br \/>\nThe discus fish get used to these regular feeding times and will eagerly await you. Feeding from the hand (of course cream and soap-free hands (brush well under running water) is very quickly possible.<\/p>\n<p style=\"text-align: justify;\"><strong>Food dosage of our STENDKER discus food GoodHeart:<\/strong><br \/>\nOur food is ideally suited as a complete food, please do not feed too much and be sure to defrost beforehand. (Tip: thaw the night before in the fridge in a plastic storage container with a lid) For 10 discus fish with a size of :<br \/>\n\u2013 6.5 to 12 cm, about 1 blister (2.5-5 grams) per meal, i.e. 7.5-15 grams a day.<br \/>\n\u2013 12 to 18 cm, about 1-1 blister (5-7.5 grams) per meal, i.e. 15-22.5 grams a day.<br \/>\nGive the animals about as much food as the fish will eat in five minutes. Please do not feed them any more, as uneaten food residues significantly worsen the water quality and water parameters. Discus fish do not have a pronounced feeling of satiety and too much food could lead to overfeeding of the animals. Please be sure to thaw our frozen food before feeding! Discus don&#039;t like hard food and will lose their appetite if they bite into something frozen. In addition, the frozen food can (in some cases) also cause the discus fish to develop swim bladder infections or inflammation of the intestines. Depending on the size of the tank and the number of fish, 2-3 feeding points have proven useful, so that the weaker animals in the group also have a good chance of getting the food. That<br \/>\nDefrosted feed can be easily portioned and fed with a knife or spoon. Our discus fish and other companion fish eat our food very quickly and with pleasure. If you are unable to feed your fish 3 times a day for reasons of time, it is usually sufficient to only feed them in the morning and evening. However, the daily amount of food should remain the same. However, for smaller discus (less than 8 centimeters in size) it is recommended to stick to three meals a day to ensure even growth. You are also welcome to give additional light snacks such as mosquito larvae (but please not the red mosquito larvae, as they often live in polluted water and could thus introduce diseases into your aquarium).<br \/>\n<strong>Thawing instructions for STNKDER discus frozen food:<\/strong><br \/>\nTake about as much frozen food from your freezer as you need for 2 days (3 meals a day).<br \/>\nTIP: The required amount of feed can be easily cut from the frozen 500g feed board into portions of the right size using rose shears. Our thawed frozen food keeps in the fridge for about 2-3 days, so you don&#039;t need to repeat the thawing process every day. Fill the frozen food into a fresh storage box and close it with the lid that comes with it. Then place this food tin in the refrigerator for gentle defrosting. After approx. 6 hours you can already use the thawed food. If the food starts to ferment or smells unpleasant after a few days, please wash the feeding container thoroughly with hot water and take out a new amount of frozen food for the next two days. Please do not thaw the food with a sieve under running water, otherwise the important vitamins would be washed away. Our discus fish know and love our discus food, which is why they literally pounce on it, which is partly reminiscent of piranhas. Don&#039;t be alarmed if you only see a &quot;cloud of dust&quot; at the end. Our feed is eaten very quickly.<br \/>\nWhy our STENDKER discus food is so good:<br \/>\nWe have been breeding discus fish for more than 54 years (in Germany) and over this time we have developed a feed mixture specially tailored to the needs of discus fish. We feed our STENDKER discus feed exclusively to our own discus fish in our breeding facility. It contains everything that discus fish need for a healthy diet and is ideally suited as a complete feed. STENDKER discus feed contains a mixture of beef heart, vegetable components and much more, which makes a significant contribution to keeping our animals healthy. When you see our animals, you will immediately see how well the discus fish are doing with our STENDKER discus food. Make up your own mind and give it a try. Of course, the quality of the feed depends on the careful<br \/>\nProduction, the correct mixing ratio, the high quality of the ingredients, the composition and the gentle preparation. With our food you can be sure that we have taken all these factors into account to make the discus feel comfortable and healthy. In order to provide you with high-quality, comprehensive and very simple feeding, we offer our STENDKER discus food as a complete complete food through pet shops. Our STENDKER discus frozen food is available in 100 gram blisters and as 200 or 500 gram flat bars. This good and balanced feed mixture contributes significantly to maintaining the health, colourfulness, reproduction and growth of the discus fish.<br \/>\nAsk your pet shop. By the way: Other fish also love our food and aquatic plants in your aquarium usually no longer need any additional fertilizer.<br \/>\nFood for discus fish in general Beef heart was wrongly condemned in the media as food for discus fish as &quot;there are no cattle in the Amazon&quot;. Cattle are not treated with hormones, which is regularly checked by veterinarians. Beef heart is an animal protein that the discus fish absorbs in the wild from small crustaceans, worms and insect larvae. Since some of these animal species are hard to find in our latitudes, expensive and sometimes heavily contaminated, beef heart is often used as a protein supplier for discus fish food in our region. Of course enough<br \/>\nIn our opinion, beef heart as a complete feed is not enough for discus fish. We also advise against red mosquito larvae and Tubifex as food for discus fish, since both types of food come from heavily polluted water (manure) and often introduce bacterial infections into the aquarium.<br \/>\nWe also advise against Cyclops shrimps, as they often carry tapeworm larvae, which develop into tapeworms in the discus after eating and can lead to massive growth disorders.<br \/>\nWe consider other types of frozen food such as water fleas, Artemia, muesis, white and black mosquito larvae to be good additional food, but should only be seen as a &quot;candy&quot;, as the nutritional value of this food is very low.<br \/>\nAddition: refusal of food after transport and use After the transport and transfer of the discus fish to your tank, which is very stressful for the animals, food intake can be delayed by up to four weeks, especially for the larger fish. The smaller discus fish (up to 14 cm) are less sensitive to this, feel at home in their new environment more quickly and usually eat quite well the next day. However, since our discus fish are generally well-fed, this refusal to feed does not pose a serious problem when the discus is almost fully grown. In such a case, we recommend slowly increasing the water temperature in your aquarium to 33\u00b0C for about two weeks (please remember to move the plants beforehand!). This stimulates the metabolism and thus also the appetite<br \/>\ndiscus fish. If our discus fish continue to receive their usual food (STENDKER discus food), it will be easier to get started.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688118677633-c4b87387-6bf747fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688118677633-c4b87387-6bf747fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">8. Plants<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Plants for discus aquarium<br \/>\nAdrie Baumann (World Champion 2013, in the LIVE Aquascape) kindly provided us with the following recommendations for plants that are compatible with keeping discus (28-30\u00b0 degrees keeping temperature). Mr. Baumann also enjoys his private life<br \/>\nand a beautifully captured aquarium, which he has stocked with our STENDKER discus fish. In our opinion, a beautifully scaped aquarium with our discus fish is already &quot;the premier class of freshwater aquaristics, in perfection&quot;. If you work with real plants, you usually need a CO2 system and also fertilizer. The trick is not to bring too much fertilizer and CO2 into the aquarium and to achieve a good middle ground between plant growth and ideal keeping conditions for our discus fish. There should also be enough swimming space for the discus fish. It is also recommended to first test the bacterial compatibility of plants under quarantine (Bacterial compatibility).<\/p>\n<p style=\"text-align: justify;\">Suitable plants for the discus aquarium<br \/>\n(a small selection of possible plants follows):<br \/>\n- Anubias barteri var. angustifolia<br \/>\n\u2013 Anubias barteri var. Barteri<br \/>\n- Anubias barteri var. caladiifolia<br \/>\n\u2013 Anubias barteri var. coffeefolia<br \/>\n\u2013 Anubias barteri var. nana<br \/>\n\u2013 Anubias barteri var. nana &#039;Petite&#039;<br \/>\n\u2013 Aponogeton boivinianus<br \/>\n\u2013 Aponogeton crispus<br \/>\n\u2013 Aponogeton crispus &#039;Red&#039;<br \/>\n\u2013 Aponogeton longiplumulosus<br \/>\n\u2013 Aponogeton madagascariensis<br \/>\n\u2013 Aponogeton ulvaceus<br \/>\n- Bolbitis heudelotii<br \/>\n\u2013 Ceratopteris thalictroides<br \/>\n\u2013 Crinum calamistratum<br \/>\n\u2013 Crinum natans<br \/>\n\u2013 Crinum thaianum<br \/>\n\u2013 Cryptocoryne beckettii \u201cpetchii\u201d<br \/>\n- Cryptocoryne crispatula<br \/>\n- Cryptocoryne parva<br \/>\n\u2013 Cryptocoryne fortunei `Broad Leaves`<br \/>\n\u2013 Cryptocoryne wendtii `Brown`<br \/>\n\u2013 Cryptocoryne wendtii `Green`<br \/>\n\u2013 Cryptocoryne wendtii `Mi Oya`<br \/>\n\u2013 Cryptocoryne wendtii `Tropica`<br \/>\n\u2013 Cryptocoryne x willisii<br \/>\n\u2013 Echinodorus `Aquartica`<br \/>\n\u2013 Echinodorus bleheri<br \/>\n\u2013 Echinodorus cordifolius ssp. fluitans<br \/>\n\u2013 Echinodorus osiris<br \/>\n\u2013 Echinodorus `Ocelot`<br \/>\n\u2013 Echinodorus `Ocelot Green`<br \/>\n\u2013 Echinodorus palaefolius var. latifolius<br \/>\n\u2013 Echinodorus quadricostatus<br \/>\n\u2013 Echinodorus `Red Diamond`<br \/>\n\u2013 Echinodorus `Red Special`<br \/>\n\u2013 Echinodorus `Reni`<br \/>\n\u2013 Echinodorus `Rose`<br \/>\n\u2013 Echinodorus `Ruby`<br \/>\n\u2013 Echinodorus tenellus<br \/>\n\u2013 Echinodorus uruguayensis<br \/>\n\u2013 Echinodorus `Vesuvius`<br \/>\n\u2013 Echinodorus `Barthii`<br \/>\n- Heteranthera zosterifolia<br \/>\n\u2013 Hydrocotyle verticillata<br \/>\n- Hygrophila corymbosa<br \/>\n- Hygrophila corymbosa `Angustifolia` - Hygrophila corymbosa<br \/>\n`Siamensis` \u2013 Lilaeopsis brasiliensis<br \/>\n- Ludwigia glandulosa<br \/>\n\u2013 Ludwigia repens `Rubin`<br \/>\n\u2013 Marsilea hirsuta<br \/>\n\u2013 Microsorum pteropus (Java fern, also called salsify fern)<br \/>\n\u2013 Microsorum pteropus `Narrow`<br \/>\n\u2013 Microsorum pteropus `Trident`<br \/>\n\u2013 Nymphaea lotus<br \/>\n\u2013 Nymphoides sp. `Taiwan`<br \/>\n\u2013 Pogostemon stellata<br \/>\n\u2013 Rotala rotundifolia<br \/>\n\u2013 Rotala sp `Green`<br \/>\n- Sagittaria subulata<br \/>\n\u2013 Staurogynous repens<br \/>\n\u2013 Taxiphyllum barbieri<br \/>\n\u2013 Taxiphyllum sp. `spicy`<br \/>\n- Vallisneria sp. `Gigantea`<br \/>\n- Vallisneria sp. `Natans`<br \/>\n\u2013 Vallisneria spiralis `Tiger`<br \/>\n\u2013 Vesicularia dubyana `Christmas`<br \/>\n\u2013 Vesicularia ferriei `Weeping`<\/p>\n<p style=\"text-align: justify;\">Please plant the smaller plants in front and the larger plants in the back. Aquatic plants should also be trimmed regularly to give your discus enough room to swim. In order to pre-treat purchased plants that are occasionally already colonized with &quot;snails&quot;, it is advisable to soak the plants in a bucket of carbonated water for around 24 hours. This is how you get rid of the snails and don&#039;t put them in your aquarium unintentionally!<br \/>\nATTENTION: before planting, please remove the lead rings<br \/>\non the plants, otherwise they would die and the water would be poisoned by the lead ring<br \/>\nbecomes.<br \/>\n(All statements without guarantee)<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688118678418-047ba6fe-f56e47fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688118678418-047ba6fe-f56e47fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">9. Associated fish<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Companion fish for the discus aquarium<br \/>\nAdrie Baumann (World Champion 2013, in the LIVE Aquascape) kindly provided us with the following recommendations for suitable companion fish that are compatible with discus keeping (28-30\u00b0 keeping temperature). Mr. Baumann also enjoys privately his wonderfully captured aquarium, which he has stocked with our STENDKER discus fish. In our opinion, a beautifully scaped aquarium with our discu fish is already &quot;the premier class of freshwater aquaristics, in perfection&quot; and with a selection of suitable companion fish, such as Thai cleaner fish, you even have a &quot;cleaning troop for algae removal&quot; that is impressive . Fellow fish also like our discus food. However, we recommend feeding them some dry food as well. Please also note our recommendation for aquarium size with companion fish. LINK: ideal keeping conditions Please only socialize small catfish with our discus fish! It is also recommended to first test the bacterial tolerance of companion fish under quarantine (bacterial tolerance). Please buy all discus fish, companion fish and plants from the same dealer and as soon as possible, as fish and plants bought later can suffer from diseases and diseases<br \/>\nother strains of bacteria can bring into your aquarium. In order not to endanger your fish population, we recommend: please buy plenty of fish at the beginning and do not add any more fish. This saves you a lot of trouble and avoids the risk of disease being introduced.<br \/>\nException: If you have decided on our STENDKER discus fish, you can stock animals from our breeding farm in different sizes and colors at any time. Suitable companion fish for the discus aquarium (a small selection of possible companion fish follows):<br \/>\n\u2013 Red neon (Paracheirodon axelrodi)<br \/>\n\u2013 Yellow Congo Tetra (Alestopetersius caudalis)<br \/>\n\u2013 Blue Congo Tetra (Phenacogrammus interruptus)<br \/>\n\u2013 Adolf\u2019s armored catfish (Corydoras adolfoi)<br \/>\n\u2013 Agassiz&#039; cichlid (Apistogramma agassizii)<br \/>\n\u2013 Bleher\u2019s red-headed tetra (Hemigrammus bleheri)<br \/>\n\u2013 Flag tetra (Hyphessobrycon erythrostigma)<br \/>\n\u2013 Striped sea mullet (Garra cambodgiensis)<br \/>\n\u2013 Golden sturgeon catfish (Sturisoma aureum)<br \/>\n\u2013 witch catfish (Rineloricaria fallax)<br \/>\n&quot;Other fish for the discus aquarium&quot;&quot; Page 1 of 2<br \/>\n&quot;Other fish for the discus aquarium&quot;&quot; Page 2 of 2<br \/>\nContinuation: suitable companion fish for discus fish:<br \/>\n\u2013 Cockatoo dwarf cichlid (Apistogramma cacatuoides)<br \/>\n\u2013 L46 (Hypancistrus zebra)<br \/>\n\u2013 Leopard armored catfish (Corydoras trilineeatus)<br \/>\n\u2013 Ear lattice loricariid (Otocinclus macrospilus)<br \/>\n\u2013 Orange Corydoras (Corydoras sterbai)<br \/>\n\u2013 oblique swimmers (Thayeria boehlkei) [<br \/>\n\u2013 Rose tetra (Hyphessobrycon rosaceus)<br \/>\n\u2013 Reddish sucker mullet<br \/>\n\u2013 Gara rufa (also called Thai cleaner fish)<br \/>\n\u2013 Siamese Algae Eater (Crossocheilus siamensis)<br \/>\n\u2013 Butterfly cichlid (Microgeophagus ramirezi)<br \/>\n\u2013 Black Flag Tetra \/ Neon (Hyphessobrycon herbertaxelrodi)<br \/>\n\u2013 Black phantom tetra (Hyphessobrycon megalopterus)<br \/>\n\u2013 Lemon tetra (Hyphessobrycon pulchripinnis)<br \/>\n\u2013 Red line dwarf cichlid (Apistogramma hongsloi)<br \/>\n\u2013 Golden tetra (Hemigrammus rodwayi)<\/p>\n<p style=\"text-align: justify;\">Disk cleaner fish (catfish) can also prove to be useful cleaning agents in your discus tank. But please make sure that you choose small catfish, as catfish that are larger than 15 cm like to &quot;nibble&quot; on discus fish and of course we want to avoid that. Neon swarm, consisting of approx. 30-50 animals, butterfly cichlids (pairs), approx. 2-3 pairs of dwarf cichlids, approx. 6 catfish (small sized ones also called disk cleaner fish), approx. 6 Amano shrimps for algae removal<br \/>\nPlease place butterfly cichlids (one coconut each, with an entrance or a small stone slab as a breeding ground) in your aquarium for the pairs. Butterfly cichlids show a very nice pair and breeding behavior.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688119615534-385286a2-3a2c47fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688119615534-385286a2-3a2c47fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">10. Floor cleaning<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Cleaning the substrate with the mud bell to prevent or eliminate hydrogen sulfide poisoning:<br \/>\nThe fish were doing well for weeks and months and suddenly the behavior of the animals changed. The fish are no longer so trusting, jumpy, breathing becomes faster and the animals no longer feel so well. The cause of this is often hydrogen sulfide poisoning, which is caused by soil contamination. This becomes visible through rising bubbles when moving the substrate. These are putrefactive gases that form in the substrate.<br \/>\nThis can be avoided or remedied by cleaning the substrate with the mud bell when changing the water. We recommend carrying out this process once a week.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688119697664-0e700d61-33be47fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688119697664-0e700d61-33be47fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">11. Buying Tips<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\"><strong>BUYING TIPS:<\/strong><br \/>\nVisit several pet stores before deciding to buy fish and check the quality and health of the pets in the stores as follows:<br \/>\n1. Do the animals look healthy?<br \/>\n2. Do the fish still look healthy on your next visit in about 2 weeks?<br \/>\n3. Do the fish all come to the food for feeding and do they eat well?<\/p>\n<p style=\"text-align: justify;\">Another quality feature of a healthy discus fish is its red or amber-colored, luminous eye and a broad forehead (where the fat reserves are located). Please buy all discus fish, companion fish and plants from the same dealer and as soon as possible, as fish and plants bought later can bring diseases and other strains of bacteria into your aquarium. In order not to endanger your fish population, we recommend: please buy plenty of fish at the beginning and do not add any more fish. This will save you a lot of hassle and<br \/>\navoid the risk of disease introduction.<\/p>\n<p style=\"text-align: justify;\">Exception: If you have decided on our STENDKER discus fish, you can stock animals from our breeding farm in different sizes and colors at any time.<\/p>\n<p style=\"text-align: justify;\">Be sure to ask your specialist retailer whether the discus fish on display are wild-caught, Asian bred fish or our STENDKER discus fish (if this is not clear). Decide on one of these three species and stick with it, as discus fish from different farms should not be mixed!<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688119757715-c4ea080f-014747fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688119757715-c4ea080f-014747fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">12.FAQs<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"wp-block-pdfemb-pdf-embedder-viewer\"><a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Haeufig_gestellte_Fragen_und_Antworten_ueber_Haltung_und_Pflege_von_Diskusfischen-Diskuszucht-Stendker-GmbH-Co-KG.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"both\" data-toolbar-fixed=\"on\">Frequently asked_questions_and_answers_about_maintenance_and_care_of_diskusfischen-diskuszucht-Stendker-GmbH-Co-KG<\/a><\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688119787890-b175ec16-b33f47fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688119787890-b175ec16-b33f47fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">13. Main Tips<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Helpful tips about the discus fish<br \/>\n<strong>Feed recommendation<\/strong><br \/>\nThere is a lot of discussion and differing opinions about feeding discus fish. We feed our STENDKER discus feed, which we have specially adapted to the needs of discus fish, exclusively to our own animals in our breeding facility. It is a good and balanced feed mix that contributes significantly to maintaining the health, colourfulness, reproduction and growth of discus fish. We recommend feeding your discus fish with our STENDKER discus food 3 times a day. Our STENDKER discus frozen food is available from pet shops as 30 gram sausages, 100 gram blisters and as 500 gram flat bars. The required amount of feed can be easily cut from the frozen 500g feed board into portion-sized pieces with secateurs. Our thawed food keeps in the fridge for two days (see also &quot;Feeding and food for discus fish&quot;). Group size of discus fish The discus fish is a schooling fish and should therefore be kept in a group of at least 10-12 animals. We strongly recommend keeping to this number, otherwise an animal will be separated from the group and not receive enough food.<br \/>\n<strong>Selection of discus fish<\/strong><br \/>\nYou should decide in advance which type of discus fish you want, as animals from different breeds have different strains of bacteria and therefore must not be mixed! Discus fish are offered in pet shops as wild catches, Asian offspring or our STENDKER discus fish (made in Germany).<br \/>\n<strong>Sleep and circadian rhythms of discus fish<\/strong><br \/>\nIt is optimal for your discus fish if the lighting is switched on and off at the same time every day (controlled by a timer). It is also important that they are fed at the same time if possible. Optimal is the morning feeding one hour after the light has been switched on. At lunchtime, the second meal and two hours before the lights are switched off in the evening, the third meal. The animals get used to the feeding times and are eagerly awaiting you at the window at the usual time. Feeding from hands that have been previously cleaned with water (absolutely remove cream and soap residue with a brush under running water) is possible within a few days.<br \/>\n<strong>night light<\/strong><br \/>\nIn the wild, Pisces orient themselves by moonlight or the sun. With a night light, which you can control via a timer and which should overlap with daylight, you can help the animals to keep their bearings and minimize jumpiness. If the light is suddenly switched on in a dark room, it can happen that the discus fish are so frightened that they &quot;shoot&quot; fearfully through the tank, jump out of the aquarium or even bang in front of the aquarium glass. Through this impact on the<br \/>\ndiscus fish can even die (e.g. through a skull fracture). With a night light you minimize this risk. (a \u201cmoon\u201d baby light in the socket would also be possible).<br \/>\n<strong>Location of the Discus Aquarium<\/strong><br \/>\nFeel free to place your discus aquarium in a busy place in your living space, as our discus fish are used to people and like company. Make sure that your aquarium is not exposed to direct sunlight, as this promotes the formation of algae. Also, please do not set up your aquarium behind a door, as this location makes the discus fish more easily startled.<br \/>\nUse of the fish after transport<br \/>\nIt is extremely important to use the fish properly after transport (described in detail by us under &quot;Use of the fish after transport&quot;. You should<br \/>\n1. Make the temperature adjustment slowly when the animals with pure oxygen<br \/>\nhave been packed. (with the fish bag closed so that oxygen does not escape)<br \/>\n2. Adjust water (open fish bag and fill aquarium water into fish bag)<br \/>\n3. Fill the fish into the transport box or bucket and insert them carefully with the fishing net<br \/>\nThe old transport water should be thrown away and not get into the aquarium,<br \/>\nsince it is already very polluted by transport and your water quality deteriorates<br \/>\nwould.<br \/>\n<strong>Difference between temperature and water balance<\/strong><br \/>\nTemperature adjustment is carried out with the fish bag closed, for example by placing the fish bag in a transport box and pouring in the aquarium water from the outside. In this way, the temperature of the water slowly adjusts. If the temperature difference is less than 4\u00b0C, the water adjustment can take place. Water adjustment is carried out with open fish bags. Attention, the use of fish<br \/>\nshould be completed after a maximum of 15 minutes after opening the bags, otherwise the discus fish would suffer from a lack of oxygen! When adjusting the water, pour about as much aquarium water into the fish bag as is already contained in it. Then you can put the discus fish in a tub, a bucket or a transport box and carefully place them in the aquarium with a fishing net.<br \/>\n<strong>water change<\/strong><br \/>\nRun cold tap water for about 5 minutes so that you don&#039;t use the stale water in the pipes for your aquarium. Warm water is usually heated in the boiler, which often contains copper tubing that can poison the aquarium water. Fill the bucket with fresh tap water, preferably with a shower head (at a distance of 10-20 cm) (this removes chlorine residue). Please fill the fresh tap water carefully from your bucket (which is only used for this process of changing the water) into your aquarium. Please repeat this process until the old water level is reached again. Please clean your hands thoroughly from soap residue and any chemical residues with a brush under running water before you reach into the aquarium!<br \/>\n<strong>Tips for your vacation<\/strong><br \/>\nMost fish die on vacation because the neighbor means too well and feeds them too much. Therefore, it makes more sense to simply take a feeding break for your fish during your vacation. Because discus fish from 10 cm in size and other half-grown fish can easily survive 2-3 weeks without food. Older and larger animals even survive longer lean times of 1 to 2 months. Such fasting periods also occur in nature every year and can even be very beneficial to health. There is no need to change the water during this time, as there is hardly any contamination due to the lack of feeding. Please note:<br \/>\n\u2013 Control the light in your aquarium using a timer<br \/>\n\u2013 Running an additional (second) pump\/filter continuously as a failsafe<br \/>\n(do not accidentally connect to the timer for the light!)<br \/>\n\u2013 Lowering the water temperature to 27\u00b0C<br \/>\n(curbs the hunger of the fish, makes them calmer and reduces the metabolism) After the holiday, you should initially feed your fish little and increase the meals cautiously at first. The animals and the filters first have to get used to the normal amount of food (increase the number of bacteria and the filter performance).<br \/>\n<strong>Aquarium Insurance<\/strong><br \/>\nIn the unlikely event that your aquarium leaks, for example when changing the water or due to leaking adhesive seams, we recommend aquarium insurance. As a rule, you can take out supplementary aquarium insurance with your household contents insurance. This additional insurance is relatively cheap and highly recommended, since water damage can often cause considerable costs (possibly water flow through several floors). You can exclude this risk with a minimal expenditure of money. Please inquire with your insurance company and take out supplementary aquarium insurance via your household contents insurance. Water temperatures and influence on the behavior of discus fish The normal temperature for keeping discus fish is around 29-30\u00b0C. If your fish are too calm and sluggish and don&#039;t eat greedily but rather hesitantly, you should increase the water temperature to 33 \u00b0C for about two weeks. This increases the metabolism of the discus fish and stimulates their activity and feeling of hunger. If your animals are very agile, aggressive and fight each other, you can &quot;cool down&quot; the temperament and aggression of your discus fish significantly by reducing the temperature to 27\u00b0C.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1688119848525-ed706644-4dd947fd-34bf\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1688119848525-ed706644-4dd947fd-34bf\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">14. Key Notices<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><strong>Important instructions:<\/strong><\/p>\n<ul>\n<li style=\"text-align: justify;\">Before touching the aquarium \/ discus fish, hands should be free of cream and soap!<\/li>\n<li style=\"text-align: justify;\">Wet your hands before touching them so that the fish&#039;s mucous membrane is not injured!<\/li>\n<li style=\"text-align: justify;\">In the case of stab wounds caused by discus rays, please keep pressing until a drop of blood comes out, which cleans the wound and thus avoids infection.<\/li>\n<li style=\"text-align: justify;\">Never mix wild caught, Asian offspring and our STENDKER discus fish!<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div data-vc-full-width=\"true\" data-vc-full-width-temp=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1688120626850\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div id=\"ultimate-heading-48556a8041534b58c\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-48556a8041534b58c uvc-1650\" data-hspacer=\"line_with_icon\" data-hline_width=\"280\" data-hicon_type=\"custom\" data-hborder_style=\"solid\" data-hborder_height=\"1\" data-hborder_color=\"#545454\" data-icon_width=\"35\" data-hfixer=\"10\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-48556a8041534b58c h2'  data-responsive-json-new='{\"font-size\":\"desktop:27px;tablet:27px;tablet_portrait:21px;mobile_landscape:15px;mobile:13px;\",\"line-height\":\"\"}' ><h2 style=\"--font-weight:theme;color:#545454;\">Keeping discus fish healthy<\/h2><\/div><div class=\"uvc-heading-spacer line_with_icon\" style=\"top\"><div class=\"ult-just-icon-wrapper\"><div class=\"align-icon\" style=\"text-align:center;\">\n<div class=\"aio-icon-img\" style=\"font-size:35px;display:inline-block;\" >\n\t<img data-recalc-dims=\"1\" decoding=\"async\" class=\"img-icon\" alt=\"null\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/2022\/03\/Diskuszucht-Stendker.png?w=1200&#038;ssl=1\"\/>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div class=\"vc_tta-container\" data-vc-action=\"collapse\"><div class=\"vc_general vc_tta vc_tta-tabs vc_tta-color-peacoc vc_tta-style-modern vc_tta-shape-rounded vc_tta-spacing-1 vc_tta-o-no-fill vc_tta-tabs-position-left vc_tta-controls-align-left\"><div class=\"vc_tta-tabs-container\"><ul class=\"vc_tta-tabs-list\" role=\"tablist\"><li class=\"vc_tta-tab vc_active\" data-vc-tab role=\"presentation\"><a href=\"#1648731858663-6a070a5d-98dbbc83-c60201aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648731858663-6a070a5d-98dbbc83-c60201aa-19f6\"><span class=\"vc_tta-title-text\">1. Quarantine &amp; Temperature Treatment<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648731858678-060c434e-69bbbc83-c60201aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648731858678-060c434e-69bbbc83-c60201aa-19f6\"><span class=\"vc_tta-title-text\">2. Salt bath for external parasites<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648732557124-fd7d5cc5-7468bc83-c60201aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648732557124-fd7d5cc5-7468bc83-c60201aa-19f6\"><span class=\"vc_tta-title-text\">3. Ointment treatment<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791050591-1feef92d-114dbc83-c60201aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791050591-1feef92d-114dbc83-c60201aa-19f6\"><span class=\"vc_tta-title-text\">4. Activated carbon filtration against poison<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791259009-5a315a1e-7084bc83-c60201aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791259009-5a315a1e-7084bc83-c60201aa-19f6\"><span class=\"vc_tta-title-text\">5. Bacterial tolerance testing<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1649137276527-ce378100-0ef701aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1649137276527-ce378100-0ef701aa-19f6\"><span class=\"vc_tta-title-text\">6. Additional note on scalars<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791447209-d4708a83-3745bc83-c60201aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791447209-d4708a83-3745bc83-c60201aa-19f6\"><span class=\"vc_tta-title-text\">7. Emergency kit<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791625503-41d9d89c-64ecbc83-c60201aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791625503-41d9d89c-64ecbc83-c60201aa-19f6\"><span class=\"vc_tta-title-text\">8. Discus fish on vacation<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648798623528-c0973df6-b253bc83-c60201aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648798623528-c0973df6-b253bc83-c60201aa-19f6\"><span class=\"vc_tta-title-text\">9. Parasite-free discus fish<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648798913411-59378281-0a3abc83-c60201aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648798913411-59378281-0a3abc83-c60201aa-19f6\"><span class=\"vc_tta-title-text\">10. Stab wounds<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1649140016196-a3a958d8-00c601aa-19f6\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1649140016196-a3a958d8-00c601aa-19f6\"><span class=\"vc_tta-title-text\">11. Substrate cleaning<\/span><\/a><\/li><\/ul><\/div><div class=\"vc_tta-panels-container\"><div class=\"vc_tta-panels\"><div class=\"vc_tta-panel vc_active\" id=\"1648731858663-6a070a5d-98dbbc83-c60201aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648731858663-6a070a5d-98dbbc83-c60201aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">1. Quarantine &amp; Temperature Treatment<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element  text-align: justify;\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\"><strong>Quarantine: further treatment options <\/strong>Eg for isolating, caring for, treating and nurturing weaker, sick discus fish and when they are unwilling to eat.<br \/>\nTemperature treatment in the quarantine tank:<br \/>\nIf a fish has problems with growth, greedy eating, or if it has white faeces, raising the temperature to 33-34 \u00b0C usually helps. This accelerates the metabolism, improves food intake, optimizes intestinal throughput and the fish&#039;s immune system<br \/>\nstrengthened. Attention: at 36\u00b0 C the temperature is deadly for the discus fish. Temperature treatment is preferable to drug treatment, since a drug can weaken the fish&#039;s immune system and thereby cause other diseases to break out. The temperature treatment should be in a quarantine<br \/>\nAquarium can be carried out and lasts until the fish is strong again and deposits dark droppings again for at least three days. This is usually two to three weeks of treatment. It is also important that the animal receives our food at least three times a day so that it can regain its strength.<br \/>\nEquipment of the quarantine tank heating element, filter (already retracted), air vents.<br \/>\n<strong>TIP:<\/strong><br \/>\nAggression, restless behavior = reduce temperature by 1-2 \u00b0C.<br \/>\nFish that are too calm and stiff = increase the temperature by 1-2 \u00b0C.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648731858678-060c434e-69bbbc83-c60201aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648731858678-060c434e-69bbbc83-c60201aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">2. Salt bath for external parasites<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Salt bath treatment recommendation: eg treatment for external parasites<\/p>\n<p style=\"text-align: justify;\">The salt bath consists of 500 grams of iodine-free table salt in fifteen liters of aquarium water. It is best if you take a bucket with 15 liters of water from the affected aquarium (this means that the temperature and the water parameters are identical to the original water of the affected fish). Dissolve the 500 grams of table salt in this water (wait 2-3 minutes until the water is clear again). Then let the affected fish swim in this salt water for 30-60 seconds and then back into the original<br \/>\nReset Aquarium. <span style=\"color: #ff0000;\"><strong>Never leave the discus fish in the salt water for more than a minute, otherwise the dose will be deadly after 5 minutes at the latest!<\/strong><\/span> This treatment removes the external parasites that are on the fish. The remaining external parasites in the aquarium are fought by the fish&#039;s immune system. If the fish is already very weak, it is more promising if the animal is placed in another aquarium after the treatment. A single treatment is sufficient in most cases.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648732557124-fd7d5cc5-7468bc83-c60201aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648732557124-fd7d5cc5-7468bc83-c60201aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">3. Ointment treatment<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Ointment treatment, eg for hole disease Treatment recommendation: Nystatin ointment<\/p>\n<p style=\"text-align: justify;\">After more than 30 years of debate, the experts still do not agree on what causes hole disease. Most say that a mineral deficiency is the trigger. Through years of testing, we have found that in about 90 % cases, an over-the-counter ointment against skin fungi brings very quick and reliable results. This ointment is called Nystatin ointment, but it should be noted that it does not contain zinc. It can easily be bought in any pharmacy without a prescription.<br \/>\n<strong>Symptoms:<\/strong><br \/>\nIn the beginning, the fish have acne-like pimples in the head area, which later burst open. After bursting and leaking, sometimes very deep craters form in the skin.<br \/>\n<strong>Treatment:<\/strong><br \/>\nCatch the affected fish from the aquarium, lay it on a damp cloth, dab the holes dry with kitchen roll and rub the ointment into the holes with your fingers. Then put the fish back in the aquarium.<br \/>\nWith a little practice, such a treatment takes 30-60 seconds. However, a fish can easily spend 3-5 minutes out of the water. For small holes, a single treatment is usually sufficient. For holes larger than 5 millimeters, you should repeat the treatment after a week.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791050591-1feef92d-114dbc83-c60201aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791050591-1feef92d-114dbc83-c60201aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">4. Activated carbon filtration against poison<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Activated carbon filtration: suitable for removing (filtering) harmful and undefinable toxins from the aquarium water<\/p>\n<p>If fish become shy, jumpy or stand in the dark in the corner after the water change, this can be due to toxins in the tap water, eg pesticides from agriculture, which tend to appear in spring and autumn. If the eating behavior of all fish deteriorates, often helps<br \/>\nalso a one or two week filtering over activated carbon, or at least a 30 percent water change. To remove these toxins, we recommend filtering over activated charcoal for a week or two. This is done as follows:<br \/>\nPut about 500 grams of activated charcoal in a bag or nylon stocking and wash it under tap water until no more black water comes out. Then place the sachet in the filter or, if that is not possible, at the outlet of the filter so that the water flows through the carbon<br \/>\nbecomes.<br \/>\n<strong>Important:<\/strong> Please be sure to remove the activated charcoal bag after three weeks at the latest, as activated charcoal has the property of storing toxins. If the storage is completely full, it releases the toxins again in a short time. This would result in the death of all fish.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791259009-5a315a1e-7084bc83-c60201aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791259009-5a315a1e-7084bc83-c60201aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">5. Bacterial tolerance testing<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Test bacterial tolerance in fish and plants<\/p>\n<p style=\"text-align: justify;\">To test whether you can add plants or fish to your aquarium, it is advisable to stock a quarantine aquarium with these plants or fish. Then please bring a \u201ctrial discus\u201d together with the newcomers in the quarantine aquarium for a week.<br \/>\nIt is strongly recommended to test this test procedure before each new stocking of fish or plants, so that you can rule out the risk of diseases being introduced into your aquarium through this test.<br \/>\nTo do this, you need a quarantine tank with the following equipment:<br \/>\n60 liter complete set with heater and filter, thermometer and air stone. See \u201cQuarantine\u201d above. A discus that can turn dark (no pigeon blood) is recommended as a test fish. If bacterial intolerance occurs, the discus usually turns dark on the third or fourth day, clamps its fins and looks for a corner of the aquarium. In such a case, the safest thing to do is to get rid of the entire contents of the quarantine tank and not put any fish or plants in your aquarium. If everything is still fine after a week, you can usually put the newly acquired plants or companion fish together with the sample discus fish in your aquarium without any risk. During the test phase, please ensure that no drops of water (wet hand, hoses, buckets, etc.) from the quarantine aquarium get into your discus aquarium.<\/p>\n<p>Bacterial Compatibility:<br \/>\nWe strongly advise against mixing our STENDKER discus fish with Asian offspring or wild catches!<br \/>\nAnimals from different breeds \/ sources can have different strains of bacteria and should therefore not be kept together because of the risk of disease introduction! If you already have our STENDKER discus fish, you can add animals from our breeding farm at any time, also in different colors and sizes, without hesitation.<br \/>\nWe guarantee that our discus fish are free of tapeworms and the so-called discus disease!<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1649137276527-ce378100-0ef701aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1649137276527-ce378100-0ef701aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">6. Additional note on scalars<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Additional notes on scalars<br \/>\nAngels are also often mixed with a discus group. We do not recommend this because angelfish are usually infected with tapeworms, which the angelfish do well with, but which can cause great problems for discus fish. In addition, the angelfish often eat more greedily than the discus fish and make it difficult for the discus fish to eat.<br \/>\nIf you still don&#039;t want to do without scalars in your discus aquarium,<br \/>\nplease do a tapeworm treatment with the scalars beforehand, as we describe in the last section of this chapter.<br \/>\nTreating angelfish against tapeworms:<br \/>\nTapeworms significantly affect the health and growth of discus fish. Our STENKDER discus fish are tapeworm-free, but they probably wouldn&#039;t stay that way with these companion fish. In our opinion, the only way, if you don&#039;t want to do without this composition with angelfish, is to treat the angelfish against tapeworms beforehand and only put them with the discus after this treatment.<br \/>\nAngelfish Tapeworm Treatment Use Tremazol or other parziquantel-based medication as directed.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791447209-d4708a83-3745bc83-c60201aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791447209-d4708a83-3745bc83-c60201aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">7. Emergency kit<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">As an emergency set for the home, we recommend:<br \/>\n<strong>1. Activated charcoal bags (from pet shops)<\/strong><br \/>\nYou can use activated carbon to filter any toxins out of the water. The activated carbon bag should be removed from the pool after three weeks at the latest, as the toxins are returned to the water once the carbon has been saturated! Activated carbon can be stored dry for years without losing its effectiveness. Activated charcoal bags are also recommended if the fish show &quot;disease&quot; although the water parameters appear OK. Some toxins cannot be detected immediately.<br \/>\n<strong>2. Quarantine tank<\/strong><br \/>\nEquipment: 60 liter complete set with heater and filter, thermometer and<br \/>\nAir stone (membrane pump) A bucket, bathtub or a fish box made of Styrofoam, which you fill with tap water (at the right temperature), is also suitable as an emergency aquarium. Equip your emergency pool\/quarantine with an outflow (diaphragm pump), a heating element and a thermometer. Our discus fish can survive for weeks in this emergency tank with normal tap water. However, since there is no filter, you should definitely not feed them! The animals can do without food for a good few weeks (holidays).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791625503-41d9d89c-64ecbc83-c60201aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791625503-41d9d89c-64ecbc83-c60201aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">8. Discus fish on vacation<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Tips for your vacation<\/p>\n<p>Most fish die on vacation because the neighbor means too well and feeds them too much. Therefore, it makes more sense to simply take a feeding break for your fish during your vacation. Because discus fish from 10 cm in size and other half-grown fish can easily survive 2-3 weeks without food. Older and larger animals even survive longer lean times of 1 to 2 months. Such fasting periods also occur in nature every year and can even be very beneficial to health. There is no need to change the water during this time, as there is hardly any contamination due to the lack of feeding.<br \/>\n<strong>Please note:<\/strong><br \/>\n\u2013 Control the light in your aquarium using a timer<br \/>\n\u2013 To have an additional (second) pump\/filter running permanently as a failsafe (do not accidentally connect it to the timer for the light!)<br \/>\n\u2013 Decreasing the water temperature to 27\u00b0C (mitigates the hunger of the fish, makes them calmer and lowers their metabolism)<\/p>\n<p>After the holiday, you should initially feed your fish little and gradually increase the number of meals. The animals and the filters first have to get used to the normal amount of food (increase the number of bacteria and the filter performance).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648798623528-c0973df6-b253bc83-c60201aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648798623528-c0973df6-b253bc83-c60201aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">9. Parasite-free discus fish<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Our STENDKER discus fish are NOT parasite-free, but free from tapeworms and the so-called discus epidemic. Due to their strong immune system, our discus fish have strong defenses against the usual parasites. We continue to recommend feeding our popular STENDKER-Good Heart food so that the immune system of our discus fish remains strong. Our feed is ideal as a complete feed, contains everything the discu fish needs for a healthy diet and is also eaten by other fish species.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648798913411-59378281-0a3abc83-c60201aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648798913411-59378281-0a3abc83-c60201aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">10. Stab wounds<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">If a discus fish bites a human, we recommend: pressing on this spot until a drop of blood comes out, which cleans the wound to avoid infection.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1649140016196-a3a958d8-00c601aa-19f6\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1649140016196-a3a958d8-00c601aa-19f6\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">11. Substrate cleaning<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\"><strong>Substrate cleaning with the Mulmglocke to remove a hydrogen sulphide<\/strong><br \/>\n<strong>To prevent or remedy poisoning:<\/strong><br \/>\nThe fish have been fine for weeks and months and suddenly that changes<br \/>\nbehavior of animals. The fish are no longer so trusting, jumpy, breathing becomes faster and the animals no longer feel so well. The cause of this is often hydrogen sulfide poisoning, which is caused by soil contamination. This becomes visible through rising bubbles when moving the substrate. These are putrefactive gases that form in the substrate. This can be avoided or remedied by cleaning the substrate with the mud bell when changing the water. We recommend carrying out this process once a week.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_video_widget wpb_content_element vc_clearfix   vc_video-aspect-ratio-169 vc_video-el-width-100 vc_video-align-center\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t\t<div class=\"wpb_video_wrapper\"><iframe loading=\"lazy\" title=\"Cleaning the substrate with the mulching bell from discus breeding STENDKER\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/x3c8PYvywDo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div data-vc-full-width=\"true\" data-vc-full-width-temp=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1688120785577\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div id=\"ultimate-heading-36346a8041534d89d\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-36346a8041534d89d uvc-1188\" data-hspacer=\"line_with_icon\" data-hline_width=\"280\" data-hicon_type=\"custom\" data-hborder_style=\"solid\" data-hborder_height=\"1\" data-hborder_color=\"#545454\" data-icon_width=\"35\" data-hfixer=\"10\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-36346a8041534d89d h2'  data-responsive-json-new='{\"font-size\":\"desktop:27px;tablet:27px;tablet_portrait:21px;mobile_landscape:15px;mobile:13px;\",\"line-height\":\"\"}' ><h2 style=\"--font-weight:theme;color:#545454;\">10 golden rules for keeping our STENDKER discus successfully<\/h2><\/div><div class=\"uvc-heading-spacer line_with_icon\" style=\"top\"><div class=\"ult-just-icon-wrapper\"><div class=\"align-icon\" style=\"text-align:center;\">\n<div class=\"aio-icon-img\" style=\"font-size:35px;display:inline-block;\" >\n\t<img data-recalc-dims=\"1\" decoding=\"async\" class=\"img-icon\" alt=\"null\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/2022\/03\/Diskuszucht-Stendker.png?w=1200&#038;ssl=1\"\/>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div class=\"vc_tta-container\" data-vc-action=\"collapse\"><div class=\"vc_general vc_tta vc_tta-tabs vc_tta-color-peacoc vc_tta-style-modern vc_tta-shape-rounded vc_tta-spacing-1 vc_tta-o-no-fill vc_tta-tabs-position-left vc_tta-controls-align-left\"><div class=\"vc_tta-tabs-container\"><ul class=\"vc_tta-tabs-list\" role=\"tablist\"><li class=\"vc_tta-tab vc_active\" data-vc-tab role=\"presentation\"><a href=\"#1648731858663-6a070a5d-98dbb33d-a0db\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648731858663-6a070a5d-98dbb33d-a0db\"><span class=\"vc_tta-title-text\">1. Our STENDKER discus fish<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648731858678-060c434e-69bbb33d-a0db\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648731858678-060c434e-69bbb33d-a0db\"><span class=\"vc_tta-title-text\">2. Aquarium Equipment<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648732557124-fd7d5cc5-7468b33d-a0db\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648732557124-fd7d5cc5-7468b33d-a0db\"><span class=\"vc_tta-title-text\">3. Discus fish after transport<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791050591-1feef92d-114db33d-a0db\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791050591-1feef92d-114db33d-a0db\"><span class=\"vc_tta-title-text\">4. Feeding and care<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791259009-5a315a1e-7084b33d-a0db\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791259009-5a315a1e-7084b33d-a0db\"><span class=\"vc_tta-title-text\">5. Water parameters and water changes<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791362961-1b4a001e-9cfbb33d-a0db\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791362961-1b4a001e-9cfbb33d-a0db\"><span class=\"vc_tta-title-text\">6. Stocking density<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791447209-d4708a83-3745b33d-a0db\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791447209-d4708a83-3745b33d-a0db\"><span class=\"vc_tta-title-text\">7. Advising customers<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791625503-41d9d89c-64ecb33d-a0db\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791625503-41d9d89c-64ecb33d-a0db\"><span class=\"vc_tta-title-text\">8. Illness and Treatment<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648798623528-c0973df6-b253b33d-a0db\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648798623528-c0973df6-b253b33d-a0db\"><span class=\"vc_tta-title-text\">9. Social Media and Increase in Sales<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648798913411-59378281-0a3ab33d-a0db\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648798913411-59378281-0a3ab33d-a0db\"><span class=\"vc_tta-title-text\">10. Packaging<\/span><\/a><\/li><\/ul><\/div><div class=\"vc_tta-panels-container\"><div class=\"vc_tta-panels\"><div class=\"vc_tta-panel vc_active\" id=\"1648731858663-6a070a5d-98dbb33d-a0db\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648731858663-6a070a5d-98dbb33d-a0db\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">1. Our STENDKER discus fish<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element  text-align: justify;\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">We have been breeding our popular STENDKER discus fish for over 55 years in the 3rd generation in Germany and have accustomed our offspring to German tap water values. Our animals are therefore brilliant in colour, very robust, not easily frightened and used to people. Our STENDKER discus fish are DIFFERENT and cannot be compared with the wild caught discus fish from the Amazon.<\/p>\n<p><strong>Our water parameters:<\/strong><br \/>\nGH 15, carbonate hardness KH 8,<br \/>\nph value 7, conductance 800 \u03bcs,<br \/>\nat a water temperature of 28\u00b0-30\u00b0C (usually no osmosis system required).<\/p>\n<p><strong>Dealer recommendation for water parameters in specialist shops:<\/strong><\/p>\n<p style=\"text-align: justify;\">We keep our animals with a nitrate value NO3 of approx. 200 mg\/l. Our specialist dealers should therefore not make the water values too good and the NO3 value should be around 100 mg\/l. If you keep our animals at 100 mg\/l nitrate it&#039;s an improvement and if the customer then has 50 mg\/l it&#039;s an improvement again and so it&#039;s ideal for the fish and the customer. A permanent pH value below 8 is important. With a 1 x weekly water change of approx. 30 percent and 3 x daily feeding with our professional discus food Good Heart, our STENDKER discus fish usually have a long life expectancy (up to 15 years).<br \/>\nOur STENDKER discus fish are available in 29 colors and can do all of them<br \/>\nbe socialized with each other without hesitation.<br \/>\nWe do not recommend mixing our STENDKER discus fish with other discus fish from other breeders (danger of bacterial intolerance and different keeping and feeding conditions). Our STENDKER discus fish should be kept in a group of at least 10 discus fish (except for keeping pairs from 14 cm in size) and of course continue to be fed 2-3 times a day with our Good Heart complete feed mixture (as in our breeding farm).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648731858678-060c434e-69bbb33d-a0db\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648731858678-060c434e-69bbb33d-a0db\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">2. Aquarium Equipment<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">In addition to a heating rod, we recommend a good filter (e.g. Hamburger Matte), an oxidizer, diffuser or air vent for oxygen supply and not to use too bright a light. A daylight tube and also a night light are ideal to avoid frightening the fish and slamming them in front of the pane.<br \/>\nWith our high stocking recommendation, which serves the well-being of the animals, it is absolutely necessary to feed oxygen into the aquarium (also in the sales system in the specialist shop). About 30 minutes after feeding, breathing should be calmer again.<br \/>\nCalm breathing is about one breath per second.<\/p>\n<p style=\"text-align: justify;\"><strong>To raise a group<\/strong> For example, 12 discus fish in 8 cm (the animals of this size are already very robust and also suitable for aquaristic beginners) a 180 liter aquarium is suitable. However, after about 8 months (about 1 year old, 14 cm in size), the animals should then be transferred to a larger aquarium. For example, 450 liters would be ideal for 12-15 adult discus fish. Approximately 30 liters per adult discus fish is ideal for our animals. More liters per adult fish is rather harmful for our STENDKER discus fish.<\/p>\n<p style=\"text-align: justify;\"><strong>For rearing<\/strong> It is NOT better for our SMALL discus fish to be raised in a larger aquarium, as the animals do not feel well, eat less well and therefore do not develop ideally. A SMALLER aquarium is BETTER suitable for rearing and can later be converted into a quarantine aquarium.<br \/>\nHowever, it is also possible to reduce the size of a 450 liter aquarium, for example, with a partition or a hamburger mat so that the rearing group feels more comfortable. As the animals grow, please increase the swimming space again.<\/p>\n<p style=\"text-align: justify;\">Our GERMAN OFFBREEDS do not need substrate or plants, but can be used for visual reasons. Please pay attention to the weekly MULMUNG on the substrate so that no hydrogen sulphide poisoning can form (bubbles rise when you run your finger through the substrate). Plants can also introduce bacteria, so please also test plants for bacterial intolerance in advance under quarantine.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648732557124-fd7d5cc5-7468b33d-a0db\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648732557124-fd7d5cc5-7468b33d-a0db\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">3. Discus fish after transport<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Please determine the temperature difference between the transport and your aquarium water upon arrival of the animals (determine with the transport bag closed) If the temperature difference is MORE THAN 4 degrees:<br \/>\nPlease leave the sealed transport bags in the box and fill the box with aquarium water. Adjust 1-2 degrees every hour (no more) until temperature difference is LESS than 4 degrees. Only then can the transport bags be opened and the water adjustment (fill in the aquarium water) can take place.<br \/>\n<strong>DANGER:<\/strong> After opening the bags, the oxygen escapes and the animals should swim in your sales facility after 15 minutes at the LATEST. Otherwise, our animals can suffer from oxygen starvation and the immune system will be significantly weakened, which can lead to illness and even death.<br \/>\nWe are not the wholesaler around the corner. Our animals often have many hours of transport behind them and it would be nice and very important to make the use as gentle as possible. Our animals will thank you with beauty and health.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791050591-1feef92d-114db33d-a0db\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791050591-1feef92d-114db33d-a0db\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">4. Feeding and care<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\"><strong>1 x weekly water change of 30 percent and 2-3 x daily feeding<\/strong> with our Good Heart, just like in our breeding farm. A high stocking density contributes to better feed intake and well-being of our discus fish.<br \/>\nOur Good Heart is available in 3 varieties (classic, spirulina algae and colour) in 100 g blisters and 500 g flat tablets. Our STENDKER discus fish do not need any variety and NO OTHER FOOD!<br \/>\n<strong>Feeding:<\/strong> Our STENDKER discus fish should continue to receive our Good Heart and no live food that can make our animals sick (please do not feed Tubifex, mussels or red mosquito larvae!!!)<br \/>\nWhat goes with live food as a SNACK, but would not replace a full meal with our Good Heart, for example: black and white mosquito larvae, water fleas (please pay attention to premium quality, as cheap goods often<br \/>\ncontamination or drug residues can be found.)<\/p>\n<p><strong>ATTENTION: Please no other cattle heart compound feed, no granules and no<br \/>\nFeed dry food to our STENDKER discus fish. Our ROFI Good Heart discus feed mix contains everything our animals need!<\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791259009-5a315a1e-7084b33d-a0db\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791259009-5a315a1e-7084b33d-a0db\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">5. Water parameters and water changes<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">We recommend a 1 x weekly water change of 30 percent with cold water for our animals. With more water changes, warm water should be refilled, but there is a risk of copper poisoning from the boiler.<br \/>\nOur water values: GH 15, carbonate hardness KH 8, ph value 7, conductance 800 \u03bcs, at a water temperature of 28\u00b0-30\u00b0C.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791362961-1b4a001e-9cfbb33d-a0db\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791362961-1b4a001e-9cfbb33d-a0db\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">6. Stocking density<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><strong>Stocking density in specialist shops and at the customer<br \/>\nIn your specialist shop, please select according to the TVT stocking. Ie:<\/strong><\/p>\n<p style=\"text-align: justify;\">Fish up to 10 cm in size, 2 cm fish to 1 liter of water, 8 cm fish, 4 liters of water and for 10 cm fish 5 liters of water. Minimum 10 fish per aquarium. The fish stock in your sales facility should be between the maximum and minimum value so that the animals are doing well. For the end customer, about 30 liters usually count per liter for adult discus fish.<br \/>\nA 450 liter aquarium is ideal for 12-15 adult discus fish. Our animals are used to large groups and feel comfortable as a group,<br \/>\neat better and present themselves better. An aquarium from 350 liters is already suitable for 10 adult STENDKER discus fish with little equipment and decoration.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791447209-d4708a83-3745b33d-a0db\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791447209-d4708a83-3745b33d-a0db\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">7. Advising customers<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Please point out to your customers that these are STENDKER German offspring, which no longer have much in common with wild-caught discus fish. It is important to point out our Good Heart food, which should continue to be fed 3 times a day, as in our breeding farm. Our feed consists of over 100 valuable ingredients and is made from beef heart. Our feed is a guarantee for good growth and for keeping our STENDKER discus fish healthy. Please also inform point 2 equipment and stocking density and lining. It is advisable to refer to our homepage with important information on keeping and caring for them.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791625503-41d9d89c-64ecb33d-a0db\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791625503-41d9d89c-64ecb33d-a0db\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">8. Illness and Treatment<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Important information can be found on our Diskus manual website:<br \/>\nPlease inform yourself and your customers on our homepage. Here too<br \/>\nhelpful tips for treating e.g. loss of appetite, hole disease, external parasites, detoxification, testing, holiday tips and much more published. We also provide helpful tips for testing the bacterial tolerance of companion fish and plants:<\/p>\n<p><blockquote class=\"wp-embedded-content\" data-secret=\"x4l2tmXXHe\"><a href=\"https:\/\/stendker.com\/en\/hilfe-center\/gesunderhaltung-von-diskusfischen\/\">Keeping discus fish healthy<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&quot;Keeping discus fish healthy&quot; \u2014 Discuszucht Stendker GmbH &amp; Co. KG\" src=\"https:\/\/stendker.com\/hilfe-center\/gesunderhaltung-von-diskusfischen\/embed\/#?secret=Y9KvtjqBag#?secret=x4l2tmXXHe\" data-secret=\"x4l2tmXXHe\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648798623528-c0973df6-b253b33d-a0db\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648798623528-c0973df6-b253b33d-a0db\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">9. Social Media and Increase in Sales<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>Satisfied customers recommend us and you and also send feedback, which we are happy to publish for you on our internet platforms with reference to your specialist shop. Pictures say more than 1000 words.<\/p>\n<p style=\"text-align: justify;\">We can also publish up to 12 pictures of you on our dealer list. There is also great feedback and exchange in numerous Facebook Stendker groups in several languages.<\/p>\n<p>Take a look and become a part of our Facebook groups:<br \/>\nGermany:<br \/>\n<a href=\"https:\/\/www.facebook.com\/groups\/633632623319346\" target=\"_blank\" rel=\"noopener\">https:\/\/www.facebook.com\/groups\/633632623319346<\/a><br \/>\nInternational:<br \/>\n<a href=\"https:\/\/www.facebook.com\/groups\/542066006653602\" target=\"_blank\" rel=\"noopener\">https:\/\/www.facebook.com\/groups\/542066006653602<\/a><br \/>\nItaly:<br \/>\n<a href=\"https:\/\/www.facebook.com\/groups\/1489621331333312\" target=\"_blank\" rel=\"noopener\">https:\/\/www.facebook.com\/groups\/1489621331333312<\/a><br \/>\nBelgium (multilingual):<br \/>\n<a href=\"https:\/\/www.facebook.com\/groups\/32756754924772\" target=\"_blank\" rel=\"noopener\">https:\/\/www.facebook.com\/groups\/32756754924772<\/a><br \/>\nand much more<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648798913411-59378281-0a3ab33d-a0db\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648798913411-59378281-0a3ab33d-a0db\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">10. Packaging<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">We pack our valuable discus fish in extra thick bags with rounded corners, several inside each other. These bags are filled with oxygen and closed with two metal clips. These fish bags are then placed in our original STENDKER transport boxes, which are heated during transport in winter using a heat pack. Here, too, we attach great importance to quality. We offer you the opportunity to obtain our bags, boxes and packaging material from us for your own use at cost price. Just ask our team. We recommend that you pack our discus fish in multiple bags with pure oxygen and give the customer in a transport box with one of our flyers when they buy it (please also refer to Good Heart food and give our recommendations for use, which you can also download from our website (Packaged with pure oxygen or oxygen tablets.) When using transport buckets with a lid, we recommend adding an oxygen tablet so that our animals do not suffer from a lack of oxygen when the transport stops.<br \/>\nTip: Our original STENDKER boxes are also very popular for leisure and camping, can be used as a cool box or emergency quarantine aquarium \ud83d\ude42<br \/>\n<strong>Tips about your order<\/strong><br \/>\nPlease do NOT let the discus groups in your sales facility shrink below 10 pieces per aquarium. Order in advance and make sure to fill the boxes when you place your order (how many animals of which size can be found in the order form, first line of the table). Our team will be happy to help you further to optimize your order and to keep the shipping costs as low as possible. We also offer you an ideal block stock for your system. Simply send us a sketch with liters and intended fish stock.<br \/>\nTip: If you know that our animals will be delivered the next day, lower the temperature of your sales area in advance so that the<br \/>\ntemperature difference between the transport water and your aquarium water is not more than 4 degrees. So you can start with the water adjustment right after delivery.<br \/>\nWe look forward to continuing our good cooperation.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div data-vc-full-width=\"true\" data-vc-full-width-temp=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div id=\"ultimate-heading-27206a8041534f7d9\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-27206a8041534f7d9 uvc-114\" data-hspacer=\"line_with_icon\" data-hline_width=\"280\" data-hicon_type=\"custom\" data-hborder_style=\"solid\" data-hborder_height=\"1\" data-hborder_color=\"#545454\" data-icon_width=\"35\" data-hfixer=\"10\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-27206a8041534f7d9 h2'  data-responsive-json-new='{\"font-size\":\"desktop:27px;tablet:27px;tablet_portrait:21px;mobile_landscape:15px;mobile:13px;\",\"line-height\":\"\"}' ><h2 style=\"--font-weight:theme;color:#545454;\">Downloads<\/h2><\/div><div class=\"uvc-heading-spacer line_with_icon\" style=\"top\"><div class=\"ult-just-icon-wrapper\"><div class=\"align-icon\" style=\"text-align:center;\">\n<div class=\"aio-icon-img\" style=\"font-size:35px;display:inline-block;\" >\n\t<img data-recalc-dims=\"1\" decoding=\"async\" class=\"img-icon\" alt=\"null\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/2022\/03\/Diskuszucht-Stendker.png?w=1200&#038;ssl=1\"\/>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4651\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/deutschland.jpg?resize=30%2C20&#038;ssl=1\" alt=\"\" width=\"30\" height=\"20\" srcset=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/deutschland.jpg?w=200&amp;ssl=1 200w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/deutschland.jpg?resize=18%2C12&amp;ssl=1 18w\" sizes=\"auto, (max-width: 30px) 100vw, 30px\" \/> <a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Handbuch_Deutsch.zip\">Download Discus Fish Guide<\/a><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4652\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/england.jpg?resize=30%2C20&#038;ssl=1\" alt=\"\" width=\"30\" height=\"20\" srcset=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/england.jpg?w=200&amp;ssl=1 200w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/england.jpg?resize=18%2C12&amp;ssl=1 18w\" sizes=\"auto, (max-width: 30px) 100vw, 30px\" \/> <a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Handbuch_Englisch.zip\">Download Discus Fish Guide<\/a><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4653\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/frankreich.jpg?resize=30%2C20&#038;ssl=1\" alt=\"\" width=\"30\" height=\"20\" srcset=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/frankreich.jpg?w=200&amp;ssl=1 200w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/frankreich.jpg?resize=18%2C12&amp;ssl=1 18w\" sizes=\"auto, (max-width: 30px) 100vw, 30px\" \/> <a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Handbuch_Franzoesisch.zip\">T\u00e9l\u00e9charger le guide du poisson Discus<\/a><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4654\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/italien.jpg?resize=30%2C20&#038;ssl=1\" alt=\"\" width=\"30\" height=\"20\" srcset=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/italien.jpg?w=200&amp;ssl=1 200w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/italien.jpg?resize=18%2C12&amp;ssl=1 18w\" sizes=\"auto, (max-width: 30px) 100vw, 30px\" \/> <a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Handbuch_Italien.zip\">Scarica la guida ai pesci Discus<\/a><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4655\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/kroatien.jpg?resize=30%2C20&#038;ssl=1\" alt=\"\" width=\"30\" height=\"20\" srcset=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/kroatien.jpg?w=200&amp;ssl=1 200w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/kroatien.jpg?resize=18%2C12&amp;ssl=1 18w\" sizes=\"auto, (max-width: 30px) 100vw, 30px\" \/> <a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Handbuch_Kroatien.zip\">Preuzmite Discus Fish Guide<\/a><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4656\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/Niederlande.jpg?resize=30%2C20&#038;ssl=1\" alt=\"\" width=\"30\" height=\"20\" srcset=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/Niederlande.jpg?w=200&amp;ssl=1 200w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/Niederlande.jpg?resize=18%2C12&amp;ssl=1 18w\" sizes=\"auto, (max-width: 30px) 100vw, 30px\" \/> <a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Handbuch_Niederlande.zip\">Download Discusvisgids<\/a><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4658\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/spanien.png?resize=30%2C20&#038;ssl=1\" alt=\"\" width=\"30\" height=\"20\" srcset=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/spanien.png?w=200&amp;ssl=1 200w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/spanien.png?resize=18%2C12&amp;ssl=1 18w\" sizes=\"auto, (max-width: 30px) 100vw, 30px\" \/> <a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Handbuch_Spanisch.zip\">Descargar guia de peces disco<\/a><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4659\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/ungarn.jpg?resize=30%2C20&#038;ssl=1\" alt=\"\" width=\"30\" height=\"20\" srcset=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/ungarn.jpg?w=200&amp;ssl=1 200w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/ungarn.jpg?resize=18%2C12&amp;ssl=1 18w\" sizes=\"auto, (max-width: 30px) 100vw, 30px\" \/> <a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Handbuch_Ungarn.zip\">Let\u00f6ltes Discus Fish Guide<\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_left\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/Diskuszucht-Stendker-Warendorf-Diskus-im-Aquarium4.jpg?resize=500%2C500&#038;ssl=1\" class=\"vc_single_image-img attachment-full\" alt=\"\" title=\"Discus-breeding-Stendker-Warendorf-Discus-in-the-aquarium4\" srcset=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/Diskuszucht-Stendker-Warendorf-Diskus-im-Aquarium4.jpg?w=500&amp;ssl=1 500w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/Diskuszucht-Stendker-Warendorf-Diskus-im-Aquarium4.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/Diskuszucht-Stendker-Warendorf-Diskus-im-Aquarium4.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/Diskuszucht-Stendker-Warendorf-Diskus-im-Aquarium4.jpg?resize=12%2C12&amp;ssl=1 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\"  data-dt-location=\"https:\/\/stendker.com\/en\/stendker-diskusfische-begeistern\/diskuszucht-stendker-warendorf-diskus-im-aquarium4\/\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div data-vc-full-width=\"true\" data-vc-full-width-temp=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1688120869860\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div id=\"ultimate-heading-59836a80415350adb\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-59836a80415350adb uvc-7513\" data-hspacer=\"line_with_icon\" data-hline_width=\"280\" data-hicon_type=\"custom\" data-hborder_style=\"solid\" data-hborder_height=\"1\" data-hborder_color=\"#545454\" data-icon_width=\"35\" data-hfixer=\"10\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-59836a80415350adb h2'  data-responsive-json-new='{\"font-size\":\"desktop:40px;tablet:35px;tablet_portrait:21px;mobile_landscape:15px;mobile:13px;\",\"line-height\":\"\"}' ><h2 style=\"--font-weight:theme;color:#545454;\">Basic knowledge of aquaristics<\/h2><\/div><div class=\"uvc-heading-spacer line_with_icon\" style=\"top\"><div class=\"ult-just-icon-wrapper\"><div class=\"align-icon\" style=\"text-align:center;\">\n<div class=\"aio-icon-img\" style=\"font-size:35px;display:inline-block;\" >\n\t<img data-recalc-dims=\"1\" decoding=\"async\" class=\"img-icon\" alt=\"null\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/2022\/03\/Diskuszucht-Stendker.png?w=1200&#038;ssl=1\"\/>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div class=\"vc_tta-container\" data-vc-action=\"collapse\"><div class=\"vc_general vc_tta vc_tta-tabs vc_tta-color-peacoc vc_tta-style-modern vc_tta-shape-rounded vc_tta-spacing-1 vc_tta-o-no-fill vc_tta-tabs-position-left vc_tta-controls-align-left\"><div class=\"vc_tta-tabs-container\"><ul class=\"vc_tta-tabs-list\" role=\"tablist\"><li class=\"vc_tta-tab vc_active\" data-vc-tab role=\"presentation\"><a href=\"#1648731858663-6a070a5d-98db3741-18dfc84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648731858663-6a070a5d-98db3741-18dfc84f-c7e1\"><span class=\"vc_tta-title-text\">1. Equipment, filters &amp; decoration<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648731858678-060c434e-69bb3741-18dfc84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648731858678-060c434e-69bb3741-18dfc84f-c7e1\"><span class=\"vc_tta-title-text\">2. Location, preparation, break in filter<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648732557124-fd7d5cc5-74683741-18dfc84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648732557124-fd7d5cc5-74683741-18dfc84f-c7e1\"><span class=\"vc_tta-title-text\">3. Water values and water chemistry<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791050591-1feef92d-114d3741-18dfc84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791050591-1feef92d-114d3741-18dfc84f-c7e1\"><span class=\"vc_tta-title-text\">4. Water change<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791259009-5a315a1e-70843741-18dfc84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791259009-5a315a1e-70843741-18dfc84f-c7e1\"><span class=\"vc_tta-title-text\">5. Water parameters and water changes<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791362961-1b4a001e-9cfb3741-18dfc84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791362961-1b4a001e-9cfb3741-18dfc84f-c7e1\"><span class=\"vc_tta-title-text\">6. Water change 90 % contingency plan<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791447209-d4708a83-37453741-18dfc84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791447209-d4708a83-37453741-18dfc84f-c7e1\"><span class=\"vc_tta-title-text\">7. Water change, aquarium, readings<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648791625503-41d9d89c-64ec3741-18dfc84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648791625503-41d9d89c-64ec3741-18dfc84f-c7e1\"><span class=\"vc_tta-title-text\">8. Filter systems<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1649149201042-dac761f3-9165c84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1649149201042-dac761f3-9165c84f-c7e1\"><span class=\"vc_tta-title-text\">9. Power failure<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1649149487115-486d4f5b-7a46c84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1649149487115-486d4f5b-7a46c84f-c7e1\"><span class=\"vc_tta-title-text\">9.1 Filter diaphragm pump failure<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648798913411-59378281-0a3a3741-18dfc84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648798913411-59378281-0a3a3741-18dfc84f-c7e1\"><span class=\"vc_tta-title-text\">10. Homemade aquarium filter<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1649149148542-045ba777-ff30c84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1649149148542-045ba777-ff30c84f-c7e1\"><span class=\"vc_tta-title-text\">11. Hamburger mat planted<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1648798623528-c0973df6-b2533741-18dfc84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1648798623528-c0973df6-b2533741-18dfc84f-c7e1\"><span class=\"vc_tta-title-text\">12. Nitrite poisoning (NO2)<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1649149555846-657be54e-c794c84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1649149555846-657be54e-c794c84f-c7e1\"><span class=\"vc_tta-title-text\">13. Use of the fish (photos)<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1649149561484-c4cce335-0279c84f-c7e1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1649149561484-c4cce335-0279c84f-c7e1\"><span class=\"vc_tta-title-text\">13.1 Use of fish (current)<\/span><\/a><\/li><\/ul><\/div><div class=\"vc_tta-panels-container\"><div class=\"vc_tta-panels\"><div class=\"vc_tta-panel vc_active\" id=\"1648731858663-6a070a5d-98db3741-18dfc84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648731858663-6a070a5d-98db3741-18dfc84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">1. Equipment, filters &amp; decoration<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element  text-align: justify;\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\"><strong>Aquarium equipment, filters and decoration tips<\/strong><\/p>\n<p style=\"text-align: justify;\">1. Aquarium minimum size<br \/>\n(LINK: <a href=\"https:\/\/stendker.com\/en\/hilfe-center\/der-diskusfisch-teil-2\/\">ideal keeping conditions (recommendation for aquarium size\/fish stock<\/a>)<br \/>\nFor keeping discus pairs without companion fish, we recommend a minimum aquarium size of 1 mx 0.40 mx 0.45 m (180 liters). The pair of discus fish should have reached a minimum size of 14 centimeters. An aquarium of at least 250 liters would be more suitable for an adult discus pair in a planted aquarium with a small school of approx. 30-50 tetras. Young fish should ideally be raised in a group of at least 10 animals. Complete aquarium sets (with pump\/filter, heating element, lighting, thermometer and accessories) are available in pet shops at quite a reasonable price. Of course, it would also be nice to have an aquarium base cabinet that is designed for the weight of the tank and also offers space for accessories.<\/p>\n<p style=\"text-align: justify;\">2. Filters<br \/>\nWe would like to introduce you to three types of filter systems (1.) internal filters, (2.) external filters and (3.) Hamburger mat filters. All filter systems must run 24 hours a day. Decide on one type. We recommend two internal filters so that you have a second filter as a backup in the event of a failure. Please attach the internal filters to the opposite aquarium panes. The water quality is improved by two filters and pollutants are broken down more quickly. The filter system should be continuously connected to electricity and run! External filters are connected with hoses and stand outside of the aquarium. There is a risk that such a hose will come loose or the filter will leak. This can cause the aquarium to leak. This risk can be avoided by using internal filters or Hamburger mat filters. With external filters, the aquarium water must flow quickly through a small initial area (e.g. filter floss). This is where most of the oxygen and nutrient content is broken down. As a result, the bacteria in the layers further behind can only contribute very little to the overall filter performance. Of course you can also opt for the Hamburg mat filter, which we only use in our breeding farm. These filter mats have an extremely large initial surface, through which the contaminated aquarium water flows very slowly, giving the bacteria the time and oxygen they need to optimally break down all pollutants. In addition, the Hamburg mat filter can be used as a room divider in a pure discus aquarium without a substrate. In this way, you can reduce the swimming space of your fish as you like and thereby increase jealousy about food. If you like, you can increase the swimming space again after your animals have grown well. In addition, thanks to the large aquarium volume, you always have good water quality and therefore optimal growth conditions. The only disadvantage: these filter mats do not look particularly nice. However, you can slit the filter sponges with a knife and use beautiful plants. So you get a &quot;green, planted filter solution&quot; that can also look good). Our filter construction instructions can be found below. Jonnys Air Concept offers ready-made solutions: <a href=\"https:\/\/www.hamburger-mattenfilter.de\/\">https:\/\/www.hamburger-mattenfilter.de\/<\/a><\/p>\n<p style=\"text-align: justify;\">3. Heater\/aquarium heater<br \/>\nWe recommend attaching the heating element to the side windows of your aquarium so that you have a clear view of your fish. Please note that the inserted and working heating rod should always be under water, otherwise it will burn out. The heater should run 24 hours a day.<\/p>\n<p style=\"text-align: justify;\">4. Thermometers<br \/>\nPlease attach a small thermometer to the front of your aquarium using a suction cup. So you can easily read and control the temperature. The ideal keeping temperature for discus fish is 28 \u2013 30 \u00b0C.<\/p>\n<p style=\"text-align: justify;\">5. Oxygen supply<br \/>\nIn addition, we recommend a diaphragm pump with 1-2 vents (air stones)<br \/>\nso that your discus fish get enough oxygen. We recommend installing the membrane pumps for oxygen supply above the water level so that no water can flow out of the aquarium in the event of a power failure.<\/p>\n<p style=\"text-align: justify;\">6. Lighting<br \/>\nDiscus fish have large eyes and are therefore quite sensitive to light. With an aquarium height of no more than 50 cm, a fluorescent tube with light similar to daylight should be sufficient for a tank depth of up to 40 cm. If the tank is deeper, two fluorescent tubes are needed to provide the plants with sufficient light. The lights should be on for about 12-14 hours a day (7am to 9pm). This period of time can be regulated very well with a timer.<br \/>\nnight light<br \/>\nIn the wild, Pisces orient themselves by moonlight or the sun. With a night light, which you can control using a timer and which overlaps with the daylight, you help the animals to keep their bearings and minimize fright. Because if your aquarium is in total darkness and a light is suddenly switched on, the discus fish could jump out of the aquarium or swim at high speed in front of the pane and injure themselves. With a night light, you largely eliminate these risks.<\/p>\n<p style=\"text-align: justify;\">7. Timer<br \/>\nWe recommend controlling the lighting with a timer for 12-14 hours a day.<br \/>\nATTENTION: The timer should only be used for the lighting (switch the night light separately) and not inadvertently connected to the pump and the heating element, as these must run continuously!<\/p>\n<p style=\"text-align: justify;\"><strong>Decoration for your discus aquarium<\/strong><br \/>\nsubstrate<br \/>\nWe recommend using quartz sand or fine aquarium gravel as substrate. Please remove the dust from the gravel before placing it in the aquarium under running water with the help of a colander (e.g. pasta sieve) to prevent the water from becoming cloudy. Roots, plants and stones Moorkien roots have proven themselves and are available in pet shops. These aquaristic roots do not swim, settle well on the substrate and are also free of pollutants, such as those found in plant protection products. Please only use plants that can permanently tolerate 30\u00b0C, such as Amazonas, various Echinodorus species, oak leaf, tiger lotus, cabomba, giant forest sneria and many more (LINK: <a href=\"https:\/\/stendker.com\/en\/hilfe-center\/der-diskusfisch-teil-2\/\">plant recommendation<\/a>)<br \/>\nPlease ensure that no pointed or sharp-edged objects are placed in your aquarium<br \/>\nto use, as discus fish can sometimes get frightened and &quot;shoot&quot; through the aquarium at high speed. In order to prevent the risk of injury to discus fish, we recommend sawing off and grinding off root tips etc. Please also be careful with stones, as they release minerals and can therefore have a negative impact on the water parameters.<br \/>\nBackgrounds You can purchase foils as backgrounds in pet shops that already come with<br \/>\nGreen plants optics are printed. We recommend flipping these back panels and the<br \/>\nFor example, to use the black or white side of the film throughout, as the colors of the discus fish come out even better. Back walls in \u201cwater optics\u201d also make your aquarium water look blue and have a beautiful underwater look. The foils are attached to the outside of the back pane of the aquarium. Only the &quot;back to nature&quot; backgrounds are used inside the aquarium. In order to create a natural habitat for discus fish, we recommend a &quot;back to nature&quot; background with a root look, which not only looks beautiful, but also works as a filter &quot;Aquarium equipment, filters and decoration tips&quot;<br \/>\nMore setup tips<br \/>\nFor fellow fish, such as butterfly cichlids, or other dwarf cichlids, we recommend placing half a coconut shell as a breeding ground in your aquarium (upside down with an opening). Suitable companion fish: (LINK: <a href=\"https:\/\/stendker.com\/en\/hilfe-center\/der-diskusfisch-teil-2\/\">Associated fish for discus fish<\/a>)<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648731858678-060c434e-69bb3741-18dfc84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648731858678-060c434e-69bb3741-18dfc84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">2. Location, preparation, break in filter<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Location, aquarium preparation, retract filter<br \/>\nThe ideal location<br \/>\nThe ideal location for your discus aquarium is a busy place (living room or eat-in kitchen) so that the discus show natural behavior in the presence of people. Our animals are used to people walking past the tanks and taking care of them. You like the company of people.<br \/>\nDirectly behind a door would be an unfavorable location, as the fish then become very skittish. Also in a garage or in the basement, where people are rarely present, the jumpiness increases. To avoid increased algae formation, you should also not place the aquarium directly in front of a window or expose it to direct sunlight.<br \/>\nThe aquarium surface should be clean and level. Even a single grain of sand can be enough to crack a pane of a filled pool. The substrate for the aquarium should also be very stable, since a full tank of 180 liters can weigh more than 250 kilos. Aquarium base cabinets are designed to meet these needs and also offer enough storage space for food and accessories.<\/p>\n<p style=\"text-align: justify;\">Danger:<br \/>\nBefore setting up larger pools, the statics of the room should be checked! Once you have found a suitable location, set up your tank and clean it beforehand as follows (without fish and without plants):<br \/>\n<strong>1. Cleaning<\/strong><br \/>\n1.1 of a new aquarium Clean your new aquarium for the first time with a vinegar solution diluted with water. The inner panes and the silicone adhesive seams should be washed thoroughly with the vinegar solution and then wiped dry so that no chemical residues affect your water quality.<br \/>\n1.2 an already used aquarium Disinfect your already used aquarium with hydrogen peroxide (available in pharmacies or drugstores).Dosage of the hydrogen peroxide<\/p>\n<p style=\"text-align: justify;\">Solution:<br \/>\n0.5 liters of the 30 %gen hydrogen peroxide solution to 180 liters of water. Please avoid direct contact with the hydrogen peroxide! There is a risk of chemical burns! Please wear goggles and gloves! Fill the aquarium with water and mix the above dosage of the hydrogen peroxide solution into the water content. This is how you disinfect the pool equipment, the filters, the accessories (net) and also the water. Please allow the solution to take effect for 24 hours. Then do a 99 percent water change and refill the aquarium with new tap water. With this procedure you will remove bacteria and old diseases.<br \/>\n2. Insert substrate<br \/>\nAn ideal substrate consists of sand (quartz sand) or fine gravel (both available in pet shops). Clean the gravel under running water, as this is the only way to remove the fine stone dust that causes the water to become cloudy. A &quot;noodle colander&quot; is for washing out the gravel under running water<br \/>\nbest for. After cleaning the gravel, please distribute it evenly as a substrate in your aquarium. If you have decided on fine quartz sand, you do not need to clean it beforehand, but can pour the sand directly into your aquarium.<br \/>\n3. Fill the aquarium with tap water<br \/>\nWe recommend filling with a bucket or a hose.<br \/>\nPlease consider that you use a bucket specially prepared for the water change and that is only to be used for this purpose, since residues of cleaning agents must not get into your aquarium under any circumstances. Please use cold water to fill your aquarium (except for 90 percent water changes), since many boilers and water pipes contain copper and this could lead to heavy metal poisoning in your aquarium water. Let the tap water run for a while so you don&#039;t get it in the<br \/>\nUse stagnant water pipes (may contain pollutants). As a rule, it is sufficient to let the cold tap water run for five minutes.<br \/>\nWhen changing the water with a hose, you should first drain the stagnant water from the water hose, as it could contain softeners and these should not get into the aquarium water.<br \/>\n4. Heating element, thermometer and ideal keeping temperature<br \/>\nTo heat up the aquarium water, please attach the heating rod to a side or rear window and set it to 29\u00b0C. Caution, please make sure that you only switch on the heating element when it is under water, otherwise it will burn out! The heating element should run without interruption<br \/>\nbe connected to the mains and run. After approx. 24 hours you have reached the required temperature of 29\u00b0C for a 180 liter pool. Now you can start retracting the filter. Please attach an indoor thermometer to the front pane of your aquarium so that you can read and check the current water temperature at any time. A good water temperature for discus fish is around 29-30\u00b0C.<br \/>\n5. Diaphragm pump<br \/>\nTo ensure a good oxygen content in the water, a diaphragm pump (with an air stone) is ideal and highly recommended. The diaphragm pump should run continuously. Even when running in the filters, since the new bacteria already need a lot of oxygen.<br \/>\n6. Filter selection and use<br \/>\nOnce you have decided on a filter system, you can now attach it. Handling if an internal filter fails:<br \/>\nIf an internal filter fails, you should not simply reconnect the failed filter to the power supply, as the bacteria could have died off after twenty minutes and liquid manure formed, which would damage your discus fish. (see below: filter failure-power failure)<br \/>\n7. Retract filter, create starter bacteria culture<br \/>\nPlease only bring the necessary starter bacteria culture (available in pet shops) into your aquarium once the required aquarium water temperature of 29\u00b0C has been reached. From this moment on, you should feed the empty tank with some food once a day, eg frozen discus food (no dry food, as the bacteria should adjust to breaking down animal protein). &quot;Feeding the empty tank&quot; is necessary because this is how the bacteria get food and multiply. You will receive the bacterial culture (filter performance) required for the fish stock after about two weeks. The filter system should run continuously.<br \/>\n8. Activated Charcoal<br \/>\nTo be on the safe side, you should keep a bag of activated charcoal (available as a filter medium in pet shops) in your pet for two to three weeks without fish<br \/>\nkeep aquarium. The activated carbon filters any toxins out of the water and should be removed from the pool after three weeks at the latest! Removing the bag of activated charcoal is imperative as the toxins are returned to the water once the charcoal is saturated!<br \/>\n9. Lighting for the aquarium<br \/>\nPlease only switch on the aquarium lamps after the fish have been used (one day later, so that the animals slowly get used to their environment). These can be easily regulated using a timer (our recommendation: 12-14 hours a day).<br \/>\n10. Checking the appropriate water values<br \/>\n(PH value, nitrite, nitrate, ammonium, ammonia measuring drops available in pet shops) If you feed the empty tank, nitrite will form in your aquarium water (detectable with measuring drops). After approx. two to three weeks, the nitrite value has reduced and the aquarium water is ready for the plants and fish stock. Before using the fish, please measure the water values. Ammonium, ammonia and nitrite must not be detectable as they are poisonous to the discus fish. These values should have been reduced by now. The PH value should be between 6.5 and 7.8. Around the fins<br \/>\nand to protect the animals&#039; mucous membranes, you can add a water conditioner shortly before putting the fish into your aquarium. After that, nothing stands in the way of a successful use of your fish.<br \/>\n(see below: Use of the fish after transport)<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648732557124-fd7d5cc5-74683741-18dfc84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648732557124-fd7d5cc5-74683741-18dfc84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">3. Water values and water chemistry<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Water parameters and water chemistry<br \/>\nThe wild-caught discus fish feels most comfortable in a water that resembles the Amazonian water of its area of origin. The water hardness there is very low (total hardness: GH 0-3, carbonate hardness KH 0-3, the PH value very low PH 4-6) and the conductivity is also very low (100-400 \u00b5s). Our discus fish, on the other hand, have been used to harder water (tap water) for many generations. Our water parameters in our rearing facility are: total hardness: GH 15,<br \/>\nCarbonate hardness KH 8, PH value 7, conductance 800 \u00b5s, at a water temperature of 29\u00b0-30\u00b0C. The following water parameters, also known as the tolerance range, are only suitable for a short time but are not suitable for permanent maintenance: GH 0-30, KH 0-25, PH value 4.0-8.3, electrical conductance 150-1200 \u03bcs. Water temperature briefly at 25-35 \u00b0C. This means that our discus fish are suitable for over 95 % of all types of tap water in Europe.<br \/>\nwater chemistry<br \/>\nYou can easily change water values by taking various measures, for example you can use a reverse osmosis system or a full desalination system to produce almost distilled water from tap water. That means you remove approx. 99 % of the water hardness and also greatly reduce the conductance to approx. 50 \u00b5s. You can then mix this water with your tap water until you get the desired water parameters. In this way you can produce suitable water yourself for discus caught in the wild or for pairs of discus that are to reproduce.<br \/>\nHow do water parameters change when the aquarium fish are fed?<br \/>\nFirst and most importantly, we would like to point out that the water values in a small aquarium (nano tank or aquarium under 150 liters) change very quickly and significantly. In a larger aquarium (180-1000 liters) the water values change much more slowly due to the larger volume, which makes such an aquarium suitable for beginners. If you feed your fish with our STENDKER discus food, for example, then you increase the phosphate content in your water, which plants and algae can use for their growth. In addition, ammonium is formed at a PH value of less than 7 and ammonia at a PH value of more than 7. These two substances are converted by the filter bacteria. It is first converted to nitrite and then to nitrate. Ammonia and nitrite are poisons that accumulate in the blood of the fish and can kill the fish at high concentrations. An old and well run-in filter that has built up a well-functioning bacterial culture always ensures that ammonium, ammonia and nitrite are almost non-existent. The phosphate and nitrate levels, on the other hand, slowly increase and the PH value falls due to the activity of the bacteria. This makes regular water changes necessary, the amount and frequency of which is directly dependent on the amount of food and faeces of the fish. For example few fish = little food = few water changes. Eg for a 180 liter aquarium with 12 discus fish (10 cm), 50 neon, 6 catfish and 4 dwarf cichlids, we recommend a water change of 1\/3 of the aquarium water once a week. You can obtain suitable measuring drops or test strips from pet shops to determine the water parameters listed here. These values should be measured regularly.<\/p>\n<p>Measuring drops and water values<br \/>\n<strong>ammonium<\/strong><br \/>\nforms at a PH value below 7 when the filter is not yet working properly. An increase in this value can be avoided by minimizing feed.<br \/>\n<strong>ammonia<\/strong><br \/>\nforms at a PH value of over 7 is toxic and occurs when the filter is not yet working properly. An increase in this value can be avoided by minimizing feed.<br \/>\n<strong>nitrite<\/strong><br \/>\nmeasure daily in a new aquarium until no more nitrite occurs when fully fed. After that, you no longer need to measure nitrite.<br \/>\nYou should only measure nitrite daily (for approx. 1 week) once the filter performance has been reduced by cleaning the filter or by shutting down the filter, to ensure that the filter is once again performing at its old level. You can also tell from the behavior of the fish whether the nitrite level is extremely high. The animals then usually refuse the food and breathe<br \/>\nheavy and fast. Then please measure nitrite and, if it increases, stop feeding immediately and do a 90 % gene water change.<br \/>\n<strong>nitrate<\/strong><br \/>\nmeasure three or four times a year before changing the water. If it is more than 100 mg per liter, it would be better to increase the water change in order to achieve better fish growth.<br \/>\n<strong>PH value<\/strong><br \/>\n1 x per week<br \/>\nIf this PH falls from 7.5 to 6.0, for example, before the week is over, the water change would already be due at this time, otherwise the PH and thus the acidity in your water will fall very quickly and at a PH of 3.6 the acid is so strong that your fish will die.<br \/>\n<strong>phosphate<\/strong><br \/>\nonly measure when increased algae growth occurs. Then you can lower the phosphate level by doing more frequent or larger water changes.<br \/>\n<strong>total hardness<\/strong><br \/>\nIf you mix your tap water with osmosis water to keep wild caught or discus breeding pairs, you should measure the water mixture once to achieve ideal values between 1 and 4 GH.<br \/>\n<strong>carbonate hardness<\/strong><br \/>\nIf you mix your tap water with osmosis water to keep wild caught or discus breeding pairs, you should measure the water mixture once to achieve ideal values between 1 and 2 KH.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791050591-1feef92d-114d3741-18dfc84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791050591-1feef92d-114d3741-18dfc84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">4. Water change<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Water change with the hose<br \/>\nA very simple and uncomplicated way to get the water out of the aquarium is to change the water using a hose. To do this, please attach a plastic pipe U-bend (see picture below) so that the aquarium water cannot drain completely (max. \u00bd of the capacity would drain away if you forget) at the beginning of the hose. Ideally, change 1\/3 of the aquarium water once a week and replace it with cold tap water. Please do not use warm water to change the water, as this usually releases copper from the hot water boiler into the water. With a 1\/3 water change, the discus fish can still cope quite well with the temperature difference.<br \/>\nSo hang the plastic pipe U-spacer that you got with a hose<br \/>\nConnect, into your aquarium and briefly suck in the water at the end of the hose with your mouth. Attach the hose to the short end (see picture).<\/p>\n<p style=\"text-align: justify;\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4017\" src=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/u-bogen.png?resize=300%2C108&#038;ssl=1\" alt=\"\" width=\"300\" height=\"108\" srcset=\"https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/u-bogen.png?resize=300%2C108&amp;ssl=1 300w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/u-bogen.png?resize=18%2C6&amp;ssl=1 18w, https:\/\/i0.wp.com\/stendker.com\/wp-content\/uploads\/u-bogen.png?w=631&amp;ssl=1 631w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><br \/>\nThe U-bend: consists of GF pipe and two 90\u00b0 GF angles, which can be purchased in the plumbing trade. This offers the advantage that you can adjust the amount of water change through the pipe length and thus prevent the aquarium from running dry! (Image U Arch) Drain the old aquarium water down your drain or into the garden. In order to prevent smaller fish (e.g. neons) from being accidentally sucked away, we recommend closing the intake port with a net and rubber to be on the safe side. To let in the fresh water, we recommend first letting the water run for 3-5 minutes so that the stagnant water in the pipes is replaced with fresh water. The hose can be easily attached to the tap with a hose clamp. Please make sure that the pump does not run dry and that the heating element is still below the water surface even when the water is low.<br \/>\nIf you use a hose to add water to the aquarium, be sure to stick with it! If the postman or the phone rings, be sure to turn off the water tap first. When distracted, a flood ensued very quickly!<br \/>\nIdeally, you should also clean the aquarium pane when you change the water<br \/>\n(a coarse sponge has proven useful) and trim the plants if necessary.<br \/>\nFinally, we recommend using a piece of filter sponge to clean the panes (coarse-pored), especially in an aquarium with a curved pane. So there are no ugly scratches in the windshield, as can happen with the blade scraper. Of course, this sponge should only be used to clean the aquarium (no detergent or detergent residue), just as a bucket should only be used as an aquarium cleaning accessory. This means that a water change can be carried out with little effort.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791259009-5a315a1e-70843741-18dfc84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791259009-5a315a1e-70843741-18dfc84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">5. Water parameters and water changes<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">We recommend a 1 x weekly water change of 30 percent with cold water for our animals. With more water changes, warm water should be refilled, but there is a risk of copper poisoning from the boiler.<br \/>\nOur water values: GH 15, carbonate hardness KH 8, ph value 7, conductance 800 \u03bcs, at a water temperature of 28\u00b0-30\u00b0C.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791362961-1b4a001e-9cfb3741-18dfc84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791362961-1b4a001e-9cfb3741-18dfc84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">6. Water change 90 % contingency plan<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Water Change 90 % Contingency Plan<br \/>\nExceptions requiring a complete (90 %) water change<br \/>\nIf nitrite is measurable, the amount of food should be halved at first and not stopped immediately. You can tell from the behavior of the fish whether the nitrite level is too high, because then the animals refuse the food and breathe heavily and quickly. If this is the case with your discus fish, you should immediately stop feeding and do a 90%en water change. Only when the nitrite level or the ammonium or ammonia level is back to zero should they slowly start feeding again. If you have very soft water (GH 0-5), you may have to change the water more often. If the PH value falls from 7.5 to 6.0, for example, the water should be changed immediately, otherwise the PH value and thus the acidity in your water will fall very quickly, and at a PH value of 3.6 the acid is so strong that your fish are dying<br \/>\nwould. If you have fewer fish, you can reduce the amount of water changed or the frequency of water changes accordingly. When is a 90 percent water change necessary and how do you go about it? A 90 percent water change is necessary if poisoning is present! If your discus fish &quot;shoot&quot; through your aquarium, it is most likely poisoning. This can be the case if more is fed than the filter can break down (nitrite poisoning).<br \/>\nWhen changing the water, please remove the water using a hose and a bucket. Please change the position of the filters in such a way that you can work as long as possible and can also start working again as quickly as possible when filling with water. When topping up the fresh water, please use water of a suitable temperature (approx. 28\u00b0C) so that the water in which the fish are swimming does not cool down too much. In this case, there is no way around using the water from the boiler, since the temperature difference would be too great when changing the water. Please pour the first buckets of fresh water slowly against the inside of your aquarium front pane so that your fish, who are no doubt nervous because of the low water level, are not frightened or even injured.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791447209-d4708a83-37453741-18dfc84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791447209-d4708a83-37453741-18dfc84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">7. Water change, aquarium, readings<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Water changes, aquarium cleaning and water readings<br \/>\nIn an aquarium of 180 liters (with approx. 12 adolescent discus fish and companion fish), a 1 x weekly water change of 20-30% of the old aquarium water is usually sufficient. The same also applies to a 450 liter aquarium with adult discus fish and companion fish.<br \/>\nThe aim of the water change is to keep the water values in the normal range, which would be the case with a PH value above 5.0 and a nitrate value below 50 mg. If there are any abnormalities in the behavior of the fish (e.g. rapid breathing, etc.), a 90 percent water change may be necessary in an emergency (LINK: 90% water change.) You should measure the water values regularly, as described in detail by us in &quot;Water values and water chemistry&quot; LINK becomes.<\/p>\n<p style=\"text-align: justify;\">Summary of the measured values:<br \/>\nPlease measure the PH value once a week. Normally the value is above 7. If the PH value has fallen below PH 6 due to feeding and a good filter, you should change the water. If the value is still at PH 7 after a week, you can postpone the water change. With a well-functioning filter, nitrate should be measured every 2 months before changing the water (unless the fish are behaving abnormally).<br \/>\nAmmonium, ammonia and nitrite should be measured daily in a newly started aquarium. Until the filter has reduced these values to almost zero when fully fed. After that, you only need to check these values if the animals behave abnormally.<br \/>\nPlease work extremely carefully and slowly so that you do not injure the fish or frighten them with rapid movements!<\/p>\n<p style=\"text-align: justify;\">Preparing for the water change:<br \/>\n1. Clean your hands under running water, without soap, with a brush. This is how you remove impurities, such as cream residues, which may be on your hands and which must not get into the aquarium water under any circumstances.<br \/>\n2. Provide cleaning aids that you only use for cleaning the aquarium and changing the water. It is important that there are no cleaning agent residues in the bucket or other cleaning utensils, as this contamination can seriously damage your fish! Good tools for cleaning and changing the water are: bucket, coarse sponge for cleaning the windows, toothbrush, rubber gloves and a thin hose for sucking off the water and the dirt residue.<br \/>\n3. Position pumps and heating element correctly. Before you start changing the water, please push the pumps a little towards the ground so that the flow also works with less water. The pumps must never run dry, otherwise they will break. Also make sure that the heating element is always surrounded by water, as it will burn through in the air! If you switch off the heating element for the cleaning procedure, please do not forget to switch it on again after the cleaning process has ended!<\/p>\n<p>The easiest way to change the water is with a hose system:<\/p>\n<p style=\"text-align: justify;\">Procedure for cleaning the aquarium, including changing the water<br \/>\n1. Position the pump and heating rod so far below the water surface that the pump does not run dry even when the water is drained (it would then break) and the heating rod is not hanging in the air (would then burst).<br \/>\n2. Drain off the old aquarium water (with a hose or bucket) and suck off dirt from the substrate using a small hose (similar to vacuum cleaning).<br \/>\n3. Clean the panes using a sponge or blade scraper. A sponge with coarse pores is also ideal, as blade scrapers tend to leave scratches, especially on curved panes.<br \/>\n4. Plants, dirt from the substrate and filter outer walls<br \/>\n(In the case of internal filters), use a toothbrush to remove algae and dirt residue and cut back plants if necessary. Vacuum off floor dirt with a hose.<br \/>\n5. Fill with fresh, cold tap water<br \/>\neither fill with buckets or with a hose. Let the water run for a few minutes. Please only use cold tap water, as hot water is usually heated by boilers (which are made of copper). Warm water can therefore be enriched with copper and should not get into your aquarium. Please let the tap water run for about 3 minutes so that you do not use the stale water in the pipes for your aquarium. Fill the bucket with fresh tap water, preferably with a shower head (at a distance of 10-20 cm) (this removes chlorine residue). Please fill the fresh tap water carefully from your bucket (which is only used for this process of changing the water) or with your hose system into your aquarium. Please repeat this process until the old water level is reached again. The easiest way to remove chlorine from tap water is to let the water run through a shower head at a distance of 10 - 20 centimeters into a bucket or the aquarium. This is how the chlorine escapes from the water before it gets into your aquarium. This is so important because chlorine can be harmful to your fish or, depending on the dose, even fatal. When flowing through the shower head, the water jet divides and each drop of water comes into contact with air, which means that the chlorine escapes from the water. As a precaution, we advise you to always choose this route.<br \/>\n6. Bring the pump and heating element back into the old position.<\/p>\n<p style=\"text-align: justify;\">We recommend using cold water for the water change, as warm water is often contaminated with copper residues from the boiler. With only 1\/3 water change, the discus fish can still cope quite well with the temperature difference. Create negative pressure in the hose so that the water (through the hose) can flow out of the aquarium into your bucket:<br \/>\nYou don&#039;t need to suck on the hose with your mouth to start the suction process. Please proceed as follows:<br \/>\n1. Simply push the hose completely under water so that all air escapes.<br \/>\n2. Seal one end of the hose with your thumb and insert into your bucket. As soon as you take your thumb away, the water flows. Please always make sure that the end of the hose is in the bucket and that the water in the bucket does not overflow! So please remove about 1\/3 of the old water and suck off the dirt residues with the help of the hose (like with a vacuum cleaner in the bucket).<br \/>\nFill with water using a water hose Always drain the stagnant water from your before changing the water<br \/>\ndrain hose. Harmful plasticizers could accumulate there, which can cause chemical poisoning in your aquarium. Here, too, we recommend using a shower head to remove any chlorine residue and to avoid the formation of bubbles. If you fill your aquarium with water using a hose without a shower head and with too much pressure, small bubbles can form in the aquarium water. With a shower head at the end of the hose, you can avoid this bubble formation. These bubbles are not harmless! Because they not only settle on all objects in the aquarium, but also in the gills of the fish. This can lead to shortness of breath in your discus fish and also to suffocation of the animals! The only way to do something about blisters that have already formed is to wait for them to go away on their own. If this process takes too long and the fish are already showing signs of shortness of breath, please move the animals immediately. We recommend your quarantine tank or, in an emergency, in a bucket (without cleaning agent residues), which you should equip with an air stone. In this way, the animals can spend several hours in the bucket.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648791625503-41d9d89c-64ec3741-18dfc84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648791625503-41d9d89c-64ec3741-18dfc84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">8. Filter systems<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Aquarium filters are biological filters and not purely mechanical, such as a sieve. This means that these filters do not hold back any dirt particles that have to be removed when the filters are cleaned. Aquarium filters convert the water impurities through bacteria that accumulate on the filter material. This preliminary information is extremely important to understand that you do not have to clean aquarium filters often! By cleaning the filters, you even destroy the bacterial culture and thus the cleaning and filter performance.<br \/>\nFilter systems:<br \/>\n<strong>External or internal filter<\/strong><br \/>\nWe recommend two internal filters as a failsafe and to improve the water quality. External filters are connected with hoses and stand outside of the aquarium. There is a risk that such a hose will come loose or the filter will leak. This can cause the aquarium to leak. This risk can be avoided with internal filters.<br \/>\n<strong>Hamburg mat filter<\/strong><br \/>\nWe are often asked about the best and simplest aquarium filters. We only use the Hamburg mat filter. It has an extremely large initial surface through which the contaminated aquarium water flows very slowly, giving the bacteria the time and oxygen they need to optimally break down all pollutants. In addition, the Hamburg mat filter can be used as a room divider in a pure discus aquarium without a substrate. So you can reduce the swimming space of your fish as you like and also increase it again. This has the great advantage that the fish are fed through the small<br \/>\nSwimming space Develop food jealousy, eat better and live more peacefully together. In addition, thanks to the large aquarium volume, you always have good water quality and therefore optimal growth conditions for your animals. This is almost a successful rearing and optimal growth of your discus fish, free from diseases and social stress<br \/>\nsecured. In our breeding farm we only use Hamburg mat filters. These filters consist of a foam mat through which the aquarium water slowly flows with the help of a pump or an air lifter. On average, the contents of an aquarium are filtered in this way two to three times an hour. We have been using these filters for more than 25 years and have never cleaned them. Over the years, one of our filter mats has developed<br \/>\nBacterial culture developed which significantly improves the water quality and thus contributes to keeping our fish healthy. Since the water flow has not yet halved, our filters do not need to be cleaned, even after 25 years.<br \/>\n<strong>Three chamber internal or external filters<\/strong><br \/>\nWe advise against using three chamber internal filters or external filters. With these filters, the aquarium water must flow quickly through a small initial area (e.g. filter floss). This is where most of the oxygen and nutrient content is broken down. As a result, the bacteria in the layers further back can only contribute very little to the overall filter performance.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1649149201042-dac761f3-9165c84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1649149201042-dac761f3-9165c84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">9. Power failure<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Power failure \/ filter membrane pump failure<br \/>\nIf the filter pump fails, the diaphragm pumps that ensure the oxygen supply are usually still running. In the event of a power failure, neither filters nor membrane pumps run and you have to<br \/>\nalso regulate the oxygen supply manually. An important point in the event of a power failure is the failure of the membrane pumps and the resulting lack of oxygen. This manifests itself in such a way that the fish come to the water surface and gasp for air. In such a case you have to wash in by hand oxygen.<br \/>\nTo hand-wash in oxygen:<br \/>\n1. Remove water with a liter measure and let the water flow back into the aquarium from a height of approx. 50 cm like a waterfall. Please repeat this process every five minutes. This should be done over a longer period of time, preferably until the electricity is running again.<br \/>\n2. Use a whisk to agitate the surface of the aquarium water, thereby introducing oxygen into the water. The aquarium filter ensures that the fish get optimal water quality and that toxins and food are broken down well. This is done by bacterial cultures,<br \/>\nwhich form gradually and carry out this biological degradation, which is vital for the fish. Aquarium filters are biological filters and not purely mechanical, such as a sieve.<br \/>\nThis means that these filters do not hold back any dirt particles that have to be removed when the filters are cleaned. Aquarium filters convert the water impurities through bacteria that accumulate on the filter material. This preliminary information is extremely important to understand that you do not have to clean aquarium filters often! By cleaning the filters, you even destroy the bacterial culture and thus the cleaning and filter performance! These all-important bits of water balance the water quality in the aquarium and need oxygen to live, which they get through the filter pump flow. If this oxygen flow is interrupted for a period of more than 15 minutes (switching off the pump, power failure), this would result in the important bacterial cultures in the filter sponge dying off and turning into liquid manure! So if, after a long period of inactivity, you simply reconnect the filter to the<br \/>\nIf you connect it to the mains, the liquid manure, which is now in the sponge of the filter, would be pumped\/run into the aquarium immediately. This would lead to immediate nitrite poisoning and the death of all fish! Please act after a long standstill\/switch off\/failure of the filter<br \/>\nas follows: Under no circumstances should you simply connect\/switch on the filter again after a longer standstill (more than 15 minutes)! The filter sponge, which is now full of liquid manure, should definitely be cleaned outside of the aquarium. If you simply pull the filter out of the aquarium, the liquid manure that has already formed would run straight into the aquarium. Under no circumstances should the filter be switched on again after the filter has been idle for a longer period of time (more than 15 minutes)!!! The liquid manure would be pumped directly into the aquarium, which would lead to the death of the animals (within minutes)! If a filter fails, the oxygen in the filter is reduced, the bacteria die and ammonium or ammonia is formed. This ammonium or ammonia smells very strongly of rotten eggs. You can use your nose to determine very easily whether your filter has been down for too long or not. Therefore you should, for example, place a plastic bag or bucket around the filter sponge or filter in the aquarium and thus completely remove the filter with its sewage water from the aquarium. Now you can squeeze\/wash the liquid manure out of the filter material under running water or in a bucket. After thorough cleaning, you can put the filter back in your aquarium and reconnect it to the mains.<br \/>\nYou can easily remove the filter material from built-in internal filters and then suck the contaminated water out of the filter housing. Unfortunately, due to the power failure, there is no longer a living bacterial culture and the filter must first be run in again slowly (approx. 2 weeks). Feed very little for the first two weeks so that the bacterial culture can grow slowly<br \/>\ncan rebuild. The fish get by with it quite well, only more food, which the filter could not break down in the initial build-up phase, would lead to renewed nitrite poisoning! With a little patience and minimal feeding, the filter will soon return to its previous performance and create optimal water quality for your fish.<\/p>\n<p style=\"text-align: justify;\">Summarizing tips after a longer standstill of the filter:<\/p>\n<ul>\n<li>Make sure you leave the filter switched off! You must first remove the liquid manure from the filter sponge!<\/li>\n<li>Do not simply pull the filter\/filter sponge out of the water! The toxins from the filter sponge would automatically run into the aquarium and lead to nitrite poisoning of the entire fish population!<\/li>\n<li>Remove the filter material\/filter from the aquarium using a plastic bag or a bucket. Therefore, when changing the water, it is important to ensure that the pump is positioned in the aquarium (under water) in such a way that it never runs dry and thus breaks or breaks The water flow would be interrupted for a long time. If this is not possible, switch off the pump and make absolutely sure that the pump is not idle for more than 15 minutes!<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>EMERGENCY PLAN:<br \/>\nIf the filter has started up again by itself after a power failure and has pumped the manure into the aquarium and you notice that the fish are &quot;shooting&quot; through the aquarium and gasping for air, you should move the fish immediately:<br \/>\nFill bucket, bathtub, fish box Styrofoam with tap water (suitable temperature) and move the fish as fast as you can. Every second counts! Equip your emergency pool with a diffuser, heater and thermometer. Our discus fish can survive for weeks in this emergency tank with normal tap water. However, since there is no filter, you should definitely not feed them. The animals can do without food for a good few weeks (holidays).<\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1649149487115-486d4f5b-7a46c84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1649149487115-486d4f5b-7a46c84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">9.1 Filter diaphragm pump failure<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"wp-block-pdfemb-pdf-embedder-viewer\"><a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Strom-Filter-Membarnpumpen-Ausfall.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"both\" data-toolbar-fixed=\"on\">Stream filter diaphragm pump failure<\/a><\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648798913411-59378281-0a3a3741-18dfc84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648798913411-59378281-0a3a3741-18dfc84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">10. Homemade aquarium filter<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"wp-block-pdfemb-pdf-embedder-viewer\"><a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Aquariumfilter_selbst_gebaut.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"both\" data-toolbar-fixed=\"on\">Aquarium filter_self_built<\/a><\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1649149148542-045ba777-ff30c84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1649149148542-045ba777-ff30c84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">11. Hamburger mat planted<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"wp-block-pdfemb-pdf-embedder-viewer\"><a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Filter_Hamburger_Matte.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"both\" data-toolbar-fixed=\"on\">Filter_Hamburger_Matte<\/a><\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1648798623528-c0973df6-b2533741-18dfc84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1648798623528-c0973df6-b2533741-18dfc84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">12. Nitrite poisoning (NO2)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\"><div class=\"vc_empty_space\"   style=\"height: 32px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Nitrite poisoning (NO2)<br \/>\nIf the fish are overfed (insufficient filter performance), ammonium or ammonia is formed in the first stage. From this ammonium, the filter converts ammonia to nitrite in a second stage and nitrate in a third stage. If the filter performance is not sufficient to completely convert the amount of feed, more and more nitrite is formed. Nitrite is a blood poison that accumulates in the fish&#039;s body until it reaches lethal levels. If the nitrite value is high, it is usually sufficient to stop feeding, or at least to minimize it until the filter has managed to lower the nitrite values to an optimal level again. However, if the nitrite level is alarmingly high (fish gasp for oxygen and measuring drops indicate poisoning), you should move the fish immediately, as in the case of a power failure (LINK power failure), clean the filter and do a 100 percent water change. Then run in the filters again (2-3 weeks) and hardly feed the animals at all during this time. With a little patience and minimal feeding, the filter will soon return to its previous performance and create optimal water quality for your fish. A bucket, bathtub or a fish box is also suitable as an emergency aquarium<br \/>\nStyrofoam, which you fill with tap water (suitable temperature) and move the fish as quickly as you can. Every second counts! Equip your emergency pool with an air vent (diaphragm pump), a heating element and a thermometer. Our discus fish can survive for weeks in this emergency tank with normal tap water. However, since there is no filter,<br \/>\nyou should never feed them. The animals can do without food for a good few weeks (holidays). (see filter running-in).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1649149555846-657be54e-c794c84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1649149555846-657be54e-c794c84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">13. Use of the fish (photos)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"wp-block-pdfemb-pdf-embedder-viewer\"><a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Einsatz_der_Fische.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"both\" data-toolbar-fixed=\"on\">Use_of_fish<\/a><\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1649149561484-c4cce335-0279c84f-c7e1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1649149561484-c4cce335-0279c84f-c7e1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">13.1 Use of fish (current)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"wp-block-pdfemb-pdf-embedder-viewer\"><a href=\"https:\/\/stendker.com\/wp-content\/uploads\/Einsatz_der_Fische_aktuell.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"both\" data-toolbar-fixed=\"on\">Use_of_fish_currently<\/a><\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Manual for keeping and caring for our animals Since there are very different keeping recommendations, especially in the area of discus fish, since discus fish from other breeders or wild-caught fish also have different keeping recommendations, we have our German offspring STENDKER discus fish, our ONLINE book on our homepage free of charge made available. We want our STENDKER discus fish to be popular with you too...<\/p>","protected":false},"author":9,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3845","page","type-page","status-publish","hentry","description-off"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Wissenswertes - Diskuszucht Stendker GmbH &amp; Co. KG<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/stendker.com\/en\/hilfe-center\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wissenswertes - Diskuszucht Stendker GmbH &amp; Co. 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