{"product_id":"threadfin-rainbowfish-iriatherina-werneri","title":"Threadfin Rainbowfish - Iriatherina werneri","description":"\u003cp\u003e\u003cstrong\u003eThreadfin Rainbowfish (Iriatherina werneri)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Threadfin Rainbowfish, Iriatherina werneri, is a delicate and elegant nano rainbowfish with a slender body, soft golden-silver colouration and spectacular extended fin rays in mature males. Also known as the Featherfin Rainbowfish or Werner’s Rainbowfish, this peaceful species is especially impressive in planted aquariums where males can display their long thread-like fins to females and rival males. It is not a boisterous community fish, and is best kept in a calm, mature aquarium with gentle tank mates, small foods and stable water conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Name:\u003c\/strong\u003e\u003cbr\u003eThreadfin Rainbowfish, Featherfin Rainbowfish, Werner’s Rainbowfish, Threadfin Rainbow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eScientific Name (Latin):\u003c\/strong\u003e\u003cbr\u003eIriatherina werneri\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Size:\u003c\/strong\u003e\u003cbr\u003eUsually around 4–5 cm, with males appearing larger when their extended fin rays are fully developed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWater Type:\u003c\/strong\u003e\u003cbr\u003eFreshwater\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin \/ Natural Habitat:\u003c\/strong\u003e\u003cbr\u003eNative to northern Australia and New Guinea. In the wild, Threadfin Rainbowfish inhabit lowland swamps, slow-flowing streams, drainage ditches, swampy ponds, billabongs and heavily vegetated lagoon margins. They are usually found among dense aquatic plants, lilies and calm marginal cover rather than in fast open water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWater Parameters:\u003c\/strong\u003e\u003cbr\u003eTemperature: 23–28°C\u003cbr\u003epH Range: 5.5–7.5\u003cbr\u003eHardness or Salinity: Soft to moderately hard freshwater; stable, clean water is more important than chasing extremes. Avoid sudden changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperament:\u003c\/strong\u003e\u003cbr\u003eVery peaceful and delicate. Threadfin Rainbowfish should be kept with calm, similarly sized fish that will not nip fins or outcompete them for food. Mature males display beautifully but are not aggressive. They can become stressed in busy communities with fast, pushy feeders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiet:\u003c\/strong\u003e\u003cbr\u003eOmnivorous micro-feeder. In nature, Threadfin Rainbowfish feed mainly on diatoms and tiny crustaceans. In the aquarium, offer fine flakes, micro pellets, powdered foods, frozen daphnia, cyclops, baby brineshrimp and other very small foods. Their mouths are small, so food size is important, and they should not be expected to compete with larger, faster fish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMinimum Tank Size:\u003c\/strong\u003e\u003cbr\u003eA minimum of 60 litres is recommended for a small group, with 90 litres or more preferred for a larger shoal or mixed planted community. A mature planted aquarium with gentle flow, cover and open display space is ideal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBehaviour \u0026amp; Activity:\u003c\/strong\u003e\u003cbr\u003eA graceful upper-to-midwater shoaling fish that spends much of its time moving through plants and open water. Keep at least 6 individuals, with 8–10 or more preferred for confidence and natural display behaviour. Males flare their long fins, spread the rounded first dorsal fin and display to females or rival males, especially in the morning or under settled conditions. Eggs are scattered among fine-leaved plants or spawning mops.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAquarium Category:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eCommunity Fish\u003c\/span\u003e\u003cbr\u003eSuitable with very peaceful species such as small rasboras, tiny tetras, pencilfish, dwarf Corydoras-type catfish, Otocinclus, peaceful shrimp with caution, snails and other calm nano fish. Avoid tiger barbs, fin-nipping tetras, aggressive cichlids, large predators, boisterous danios, fast-feeding barbs and any fish likely to damage the males’ extended fins.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecial Requirements or Care Notes:\u003c\/strong\u003e\u003cbr\u003eBest kept in a mature, heavily planted aquarium with gentle filtration, floating plants, open swimming pockets and stable water quality. Avoid strong current, rough tank mates and unstable new setups. They are sensitive during transport and acclimation, so introduce carefully and avoid large sudden water changes. A secure lid is recommended, as small active rainbowfish can jump. Males show their best finnage and display behaviour when kept with females in a relaxed group.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e\u003cbr\u003eIntermediate fishkeepers\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e:\u003cbr\u003eOccasional in trade \/ Captive-bred or specialist import where relevant\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eAll images are a visual representation of the fish you will receive, made to be as accurate as possible. Please note that Mother Nature is a wonderful thing, and variation in patterns and colours will occur — that is part of the unique beauty of these animals.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Aqua Group","offers":[{"title":"Small","offer_id":46405988909229,"sku":"AG-103735","price":6.95,"currency_code":"GBP","in_stock":false},{"title":"Medium","offer_id":46405988941997,"sku":"AG-103736","price":8.95,"currency_code":"GBP","in_stock":false},{"title":"Large","offer_id":46405988974765,"sku":"AG-103737","price":12.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0543\/0391\/6205\/files\/ThreadfinRainbowfish-Iriatherinawerneri.jpg?v=1782211522","url":"https:\/\/aquagroup.co.uk\/products\/threadfin-rainbowfish-iriatherina-werneri","provider":"Aqua Group","version":"1.0","type":"link"}