{"product_id":"ossa-knifefish-apteronotus-ossa","title":"Ossa Knifefish (Apteronotus ossa)","description":"\u003cp data-start=\"130\" data-end=\"171\"\u003e\u003cstrong data-start=\"130\" data-end=\"169\"\u003eOssa Knifefish – \u003cem data-start=\"149\" data-end=\"167\"\u003eApteronotus ossa\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"173\" data-end=\"481\"\u003eThe \u003cstrong data-start=\"177\" data-end=\"195\"\u003eOssa Knifefish\u003c\/strong\u003e is a fascinating and rare species prized by advanced aquarists for its unique shape, smooth movements, and striking appearance. With its elongated, laterally compressed body and undulating fin motion, this knifefish glides gracefully through the aquarium, making it a true showpiece.\u003c\/p\u003e\n\u003cp data-start=\"483\" data-end=\"720\"\u003eLike many knifefish, the Ossa Knifefish is nocturnal and enjoys a dimly lit tank with plenty of hiding spaces. It is best suited for experienced fishkeepers with larger aquariums, as it can grow quite large and has specific care needs.\u003c\/p\u003e\n\u003ch3 data-start=\"722\" data-end=\"740\"\u003eKey Details:\u003c\/h3\u003e\n\u003cul data-start=\"741\" data-end=\"1043\"\u003e\n\u003cli data-start=\"741\" data-end=\"784\"\u003e\n\u003cp data-start=\"743\" data-end=\"784\"\u003e\u003cstrong data-start=\"743\" data-end=\"763\"\u003eScientific Name:\u003c\/strong\u003e \u003cem data-start=\"764\" data-end=\"782\"\u003eApteronotus ossa\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"785\" data-end=\"820\"\u003e\n\u003cp data-start=\"787\" data-end=\"820\"\u003e\u003cstrong data-start=\"787\" data-end=\"803\"\u003eCommon Name:\u003c\/strong\u003e Ossa Knifefish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"821\" data-end=\"865\"\u003e\n\u003cp data-start=\"823\" data-end=\"865\"\u003e\u003cstrong data-start=\"823\" data-end=\"834\"\u003eOrigin:\u003c\/strong\u003e South America (Amazon Basin)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"866\" data-end=\"897\"\u003e\n\u003cp data-start=\"868\" data-end=\"897\"\u003e\u003cstrong data-start=\"868\" data-end=\"887\"\u003eSize Purchased:\u003c\/strong\u003e 3\" – 5\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"898\" data-end=\"928\"\u003e\n\u003cp data-start=\"900\" data-end=\"928\"\u003e\u003cstrong data-start=\"900\" data-end=\"915\"\u003eAdult Size:\u003c\/strong\u003e ~16\" – 20\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"929\" data-end=\"963\"\u003e\n\u003cp data-start=\"931\" data-end=\"963\"\u003e\u003cstrong data-start=\"931\" data-end=\"940\"\u003eType:\u003c\/strong\u003e Freshwater Knifefish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"964\" data-end=\"1011\"\u003e\n\u003cp data-start=\"966\" data-end=\"1011\"\u003e\u003cstrong data-start=\"966\" data-end=\"982\"\u003eTemperament:\u003c\/strong\u003e Semi-aggressive, predatory\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1012\" data-end=\"1043\"\u003e\n\u003cp data-start=\"1014\" data-end=\"1043\"\u003e\u003cstrong data-start=\"1014\" data-end=\"1028\"\u003eTank Size:\u003c\/strong\u003e 100+ gallons\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1045\" data-end=\"1068\"\u003eWater Parameters:\u003c\/h3\u003e\n\u003cul data-start=\"1069\" data-end=\"1152\"\u003e\n\u003cli data-start=\"1069\" data-end=\"1097\"\u003e\n\u003cp data-start=\"1071\" data-end=\"1097\"\u003e\u003cstrong data-start=\"1071\" data-end=\"1087\"\u003eTemperature:\u003c\/strong\u003e 75–82°F\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1098\" data-end=\"1117\"\u003e\n\u003cp data-start=\"1100\" data-end=\"1117\"\u003e\u003cstrong data-start=\"1100\" data-end=\"1107\"\u003epH:\u003c\/strong\u003e 6.0–7.5\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1118\" data-end=\"1152\"\u003e\n\u003cp data-start=\"1120\" data-end=\"1152\"\u003e\u003cstrong data-start=\"1120\" data-end=\"1133\"\u003eHardness:\u003c\/strong\u003e Soft to Moderate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1154\" data-end=\"1165\"\u003eDiet:\u003c\/h3\u003e\n\u003cp data-start=\"1166\" data-end=\"1326\"\u003eCarnivorous. Prefers \u003cstrong data-start=\"1187\" data-end=\"1218\"\u003elive and frozen meaty foods\u003c\/strong\u003e such as bloodworms, blackworms, brine shrimp, and small fish. Will usually not accept dry prepared foods.\u003c\/p\u003e\n\u003ch3 data-start=\"1328\" data-end=\"1345\"\u003eCare Notes:\u003c\/h3\u003e\n\u003cul data-start=\"1346\" data-end=\"1608\"\u003e\n\u003cli data-start=\"1346\" data-end=\"1418\"\u003e\n\u003cp data-start=\"1348\" data-end=\"1418\"\u003eProvide \u003cstrong data-start=\"1356\" data-end=\"1379\"\u003eample hiding places\u003c\/strong\u003e with caves, driftwood, or PVC pipes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1419\" data-end=\"1452\"\u003e\n\u003cp data-start=\"1421\" data-end=\"1452\"\u003eKeep lighting dim or subdued.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1453\" data-end=\"1536\"\u003e\n\u003cp data-start=\"1455\" data-end=\"1536\"\u003eBest housed alone or with large, peaceful tankmates (may prey on smaller fish).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1537\" data-end=\"1608\"\u003e\n\u003cp data-start=\"1539\" data-end=\"1608\"\u003eNot recommended for beginners due to size and feeding requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1610\" data-end=\"1646\"\u003eWhy Choose the Ossa Knifefish?\u003c\/h3\u003e\n\u003cul data-start=\"1647\" data-end=\"1845\"\u003e\n\u003cli data-start=\"1647\" data-end=\"1703\"\u003e\n\u003cp data-start=\"1649\" data-end=\"1703\"\u003eRare, exotic species perfect for advanced aquarists.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1704\" data-end=\"1781\"\u003e\n\u003cp data-start=\"1706\" data-end=\"1781\"\u003eGraceful swimming style and unique body shape make it a centerpiece fish.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1782\" data-end=\"1845\"\u003e\n\u003cp data-start=\"1784\" data-end=\"1845\"\u003eA true collector’s specimen for large freshwater aquariums.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Armored Cat Aquatics LLC","offers":[{"title":"Default Title","offer_id":44673205731500,"sku":null,"price":39.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0572\/7810\/3724\/files\/A5495277-7739-468D-AE92-C1878C16917F.jpg?v=1756236699","url":"https:\/\/armoredcataquatics.com\/products\/ossa-knifefish-apteronotus-ossa","provider":"Armored Cat Aquatics LLC","version":"1.0","type":"link"}