{"product_id":"gold-widow-long-fin-gymnocorymbus-ternetzi-gold-l-f","title":"Gold Widow long fin — Black Widow Tetra (Gymnocorymbus ternetzi)","description":"\u003cp\u003eThe Black Widow Tetra (\u003cem\u003eGymnocorymbus ternetzi\u003c\/em\u003e) is a dramatic black and silver tetra, also available in gold variety. Originating from South America (Paraguay, Guapore basins), this peaceful species is rated as easy care level and can live up to 5 years with proper husbandry.\u003c\/p\u003e\n\u003ch2\u003eCare at a Glance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eScientific Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGymnocorymbus ternetzi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFamily\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCharacidae\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSouth America (Paraguay, Guapore basins)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCare Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eeasy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperament\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003epeaceful\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdult Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Tank Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22–28°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.0–7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWater Hardness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5–20 dGH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOmnivore; flakes, pellets, frozen foods\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLifespan\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTank Region\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003emiddle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGroup Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6+ (schooling)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrigin \u0026amp; Natural Habitat\u003c\/h2\u003e\n\u003cp\u003eThe Black Widow Tetra hails from South America (Paraguay, Guapore basins). Black Widow Tetras are hardy, active schooling fish. The Gold variety (Gold Widow) is equally popular. May nip long fins occasionally.\u003c\/p\u003e\n\u003ch2\u003eTank Setup \u0026amp; Water Parameters\u003c\/h2\u003e\n\u003cp\u003eProvide a minimum of 60 litres for your Black Widow Tetra. Adults reach approximately 6 cm, so plan accordingly. Maintain water temperature between 22–28°C with a pH of 6.0–7.5 and hardness of 5–20 dGH. This species primarily occupies the middle region of the aquarium. Recommended group size: 6+ (schooling).\u003c\/p\u003e\n\u003ch2\u003eFeeding Guide\u003c\/h2\u003e\n\u003cp\u003eThe Black Widow Tetra is an omnivore. Omnivore; flakes, pellets, frozen foods. Feed small portions twice daily for optimal health and colouration.\u003c\/p\u003e\n\u003ch2\u003eCompatible Tank Mates\u003c\/h2\u003e\n\u003cp\u003eGood companions for the Black Widow Tetra include Other tetras, Corydoras, Rasboras. Avoid housing with Long-finned fish. You might also consider species such as Filter Foam Rough 10 PPI, X Pretty Tetras, Tropical Plastic Cone for Discus from our collection.\u003c\/p\u003e\n\u003ch2\u003eWhy Buy from Tropical Fish Co?\u003c\/h2\u003e\n\u003cp\u003eAt Tropical Fish Co, every fish is carefully selected and shipped with care across the UK. We offer live arrival guarantee, expert advice, and competitive prices. Order your Black Widow Tetra today and enjoy next-day delivery to your door.\u003c\/p\u003e","brand":"Tropical Fish Co","offers":[{"title":"2,5 - 3 cm","offer_id":57451352916303,"sku":"2107","price":3.99,"currency_code":"GBP","in_stock":true},{"title":"\u003e 3 cm","offer_id":57451352949071,"sku":"2108","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1408\/6735\/files\/gold-widow-long-fin-gymnocorymbus-ternetzi-gold-l-f-natural-aquarium-2107.webp?v=1777850505","url":"https:\/\/tropical-fish-co.myshopify.com\/products\/gold-widow-long-fin-gymnocorymbus-ternetzi-gold-l-f","provider":"Tropical Fish Co","version":"1.0","type":"link"}