{"product_id":"kali-tawa-rainbow","title":"Kali Tawa Rainbow","description":"\u003ch3 class=\"PDq2pG_selectionAnchorContainer\"\u003eAbout the Kali Tawa Rainbowfish\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe Kali Tawa Rainbowfish is a rare and highly sought-after species of Rainbowfish, prized for its iridescent blue-green body, shimmering silver scales, and brilliant yellow to orange finnage. Native to the Kali Tawa River system in West Papua, Indonesia, this beautiful species is a relatively recent addition to the aquarium hobby and has quickly become a favourite among Rainbowfish enthusiasts.\u003c\/p\u003e\n\u003cp\u003eAs they mature, males develop deeper bodies, more intense metallic colouration, and elongated dorsal and anal fins. During courtship and displays, dominant males intensify their colours dramatically, producing vibrant flashes of blue, green, gold, and orange that make them a true centrepiece in any aquarium.\u003c\/p\u003e\n\u003cp\u003eKali Tawa Rainbowfish are active schooling fish that thrive in spacious planted aquariums with open swimming areas, driftwood, and dense planting around the edges. They should be kept in groups of at least six, although larger schools produce the most impressive colours and natural social behaviour. Their peaceful temperament makes them ideal companions for other Rainbowfish, Corydoras, peaceful Barbs, larger Tetras, Loaches, and non-aggressive cichlids.\u003c\/p\u003e\n\u003cp\u003eA varied diet of premium floating pellets, tropical flakes, frozen bloodworms, brine shrimp, daphnia, mosquito larvae, and other live or frozen foods will maximise their colouration and encourage healthy growth.\u003c\/p\u003e\n\u003cp\u003eElegant, hardy, and brilliantly coloured, the Kali Tawa Rainbowfish is an exceptional addition to large planted aquariums and peaceful freshwater community tanks.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eQuick Care Guide\u003c\/h2\u003e\n\u003ch4\u003eScientific Name\u003c\/h4\u003e\n\u003cp\u003e\u003cem\u003eMelanotaenia kali tawa\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003eCommon Name\u003c\/h4\u003e\n\u003cp\u003eKali Tawa Rainbowfish\u003c\/p\u003e\n\u003ch4\u003eOrigin\u003c\/h4\u003e\n\u003cp\u003eKali Tawa River, West Papua, Indonesia\u003c\/p\u003e\n\u003ch4\u003eAdult Size\u003c\/h4\u003e\n\u003cp\u003e10–12 cm\u003c\/p\u003e\n\u003ch4\u003eTemperament\u003c\/h4\u003e\n\u003cp\u003ePeaceful\u003c\/p\u003e\n\u003ch4\u003eDiet\u003c\/h4\u003e\n\u003cp\u003eOmnivore\u003c\/p\u003e\n\u003ch4\u003eMinimum Tank Size\u003c\/h4\u003e\n\u003cp\u003e180 Litres\u003c\/p\u003e\n\u003ch4\u003eTemperature\u003c\/h4\u003e\n\u003cp\u003e24–29°C\u003c\/p\u003e\n\u003ch4\u003epH\u003c\/h4\u003e\n\u003cp\u003e6.8–8.0\u003c\/p\u003e\n\u003ch4\u003eWater Hardness\u003c\/h4\u003e\n\u003cp\u003e5–20 dGH\u003c\/p\u003e\n\u003ch4\u003eDifficulty\u003c\/h4\u003e\n\u003cp\u003eBeginner to Intermediate\u003c\/p\u003e\n\u003ch4\u003eLifespan\u003c\/h4\u003e\n\u003cp\u003e5–8 Years\u003c\/p\u003e\n\u003ch4\u003eSuitable For\u003c\/h4\u003e\n\u003cp\u003eLarge planted aquariums and peaceful community tanks\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow many Kali Tawa Rainbowfish should I keep?\u003c\/h3\u003e\n\u003cp\u003eKali Tawa Rainbowfish are schooling fish and should always be kept in groups of at least \u003cstrong\u003e6\u003c\/strong\u003e, although groups of \u003cstrong\u003e8–10 or more\u003c\/strong\u003e provide the best colouration and natural behaviour.\u003c\/p\u003e\n\u003ch3\u003eAre Kali Tawa Rainbowfish peaceful?\u003c\/h3\u003e\n\u003cp\u003eYes. They are peaceful, active fish that mix well with other Rainbowfish and similarly sized community species.\u003c\/p\u003e\n\u003ch3\u003eWhat do Kali Tawa Rainbowfish eat?\u003c\/h3\u003e\n\u003cp\u003eThey thrive on premium floating pellets, quality flakes, frozen bloodworms, brine shrimp, daphnia, mosquito larvae, and other live or frozen foods.\u003c\/p\u003e\n\u003ch3\u003eCan Kali Tawa Rainbowfish live with Corydoras?\u003c\/h3\u003e\n\u003cp\u003eYes. Corydoras are excellent tank mates, occupying the bottom of the aquarium while Rainbowfish remain in the middle and upper water column.\u003c\/p\u003e\n\u003ch3\u003eWhy are my Kali Tawa Rainbowfish not showing their best colours?\u003c\/h3\u003e\n\u003cp\u003eMales display their brightest colours when kept in groups, fed a varied diet, provided with excellent water quality, and given ample swimming space. Display behaviour between males also enhances colour intensity.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon Mistakes\u003c\/h2\u003e\n\u003ch4\u003eKeeping them in small groups\u003c\/h4\u003e\n\u003cp\u003eRainbowfish become less colourful and more timid when kept in insufficient numbers.\u003c\/p\u003e\n\u003ch4\u003eProviding too little swimming space\u003c\/h4\u003e\n\u003cp\u003eThese active fish require long aquariums with plenty of open water for schooling.\u003c\/p\u003e\n\u003ch4\u003ePoor water quality\u003c\/h4\u003e\n\u003cp\u003eExcellent filtration and regular water changes are essential for maintaining vibrant colours and long-term health.\u003c\/p\u003e\n\u003ch4\u003eFeeding only dry foods\u003c\/h4\u003e\n\u003cp\u003eA varied diet including frozen and live foods enhances colouration, growth, and breeding condition.\u003c\/p\u003e\n\u003ch4\u003eHousing with aggressive fish\u003c\/h4\u003e\n\u003cp\u003eChoose peaceful tank mates that won't outcompete or harass these active Rainbowfish.\u003c\/p\u003e","brand":"Apex Aquatic","offers":[{"title":"Default Title","offer_id":48861300621451,"sku":null,"price":150.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/8353\/3195\/files\/428803-melanotaenia-kali-tawa-2025-bild6.jpg?v=1786016019","url":"https:\/\/apexaquatic.com.au\/products\/kali-tawa-rainbow","provider":"Apex Aquatic","version":"1.0","type":"link"}