{"product_id":"red-crystal-comet-carassius-auratus","title":"Red Crystal Comet | Carassius auratus","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe Red Crystal Comet is a bright, jewel-red single-tailed goldfish with long, trailing fins and a fast, athletic swimming style. Comets are built for space — they readily reach 30cm or more and live for well over a decade, so they are pond fish or occupants of very large coldwater tanks rather than small aquariums. Hardy and forgiving, they are a superb choice for beginners with room to spare.\u003c\/p\u003e\n\u003ch2\u003eNatural Habitat\u003c\/h2\u003e\n\u003cp\u003eGoldfish are domesticated fish descended from wild crucian-type carp of East Asia. The Comet was developed as a hardy, fast-swimming single-tailed variety. They tolerate cool water and a wide range of conditions, which is why they do so well in outdoor ponds across much of Australia.\u003c\/p\u003e\n\u003ch2\u003eAppearance\u003c\/h2\u003e\n\u003cp\u003eA slim, streamlined body in vivid red with a long, deeply forked tail and flowing fins. Comets are elegant and quick, and mature fish can be substantial — comfortably 25–30cm and sometimes larger in a pond. Colour stays bright throughout life with good feeding and clean water.\u003c\/p\u003e\n\u003ch2\u003eTemperament and Compatibility\u003c\/h2\u003e\n\u003cp\u003ePeaceful but very active and fast — they can outcompete slow or fancy goldfish at feeding time, so keep them with other single-tailed goldfish of similar pace. They are social and best kept in groups.\u003c\/p\u003e\n\u003ch2\u003eFeeding\u003c\/h2\u003e\n\u003cp\u003eAn omnivore. Feed a quality goldfish pellet or flake with plenty of vegetable matter — blanched greens, peas and algae — plus occasional frozen foods. Avoid overfeeding, as goldfish produce a heavy waste load.\u003c\/p\u003e\n\u003ch2\u003eCare Requirements\u003c\/h2\u003e\n\u003cp\u003eComets need cool, hard, well-oxygenated water and a lot of room. A single fish needs a very large tank; a pond is ideal. Strong filtration and regular water changes are essential to cope with their waste. They will graze and uproot soft plants, so hardy plants or none at all suit them best.\u003c\/p\u003e\n\u003ch2\u003eBreeding\u003c\/h2\u003e\n\u003cp\u003eEgg-scatterers that spawn in spring as water warms, usually in ponds with plenty of plants or spawning mops. Adults eat the eggs and fry, so a separate raising setup is needed to grow young on.\u003c\/p\u003e\n\u003ch2\u003eSpecies Information\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eScientific Name\u003c\/td\u003e\n\u003ctd\u003eCarassius auratus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Name\u003c\/td\u003e\n\u003ctd\u003eRed Comet Goldfish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eDomesticated (ancestral to East Asia)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Size\u003c\/td\u003e\n\u003ctd\u003e30cm or more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifespan\u003c\/td\u003e\n\u003ctd\u003e10–15+ years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperament\u003c\/td\u003e\n\u003ctd\u003ePeaceful (active)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDifficulty\u003c\/td\u003e\n\u003ctd\u003eBeginner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Tank Size\u003c\/td\u003e\n\u003ctd\u003e150 litres (pond strongly preferred)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Tank Size\u003c\/td\u003e\n\u003ctd\u003ePond or 300+ litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiet\u003c\/td\u003e\n\u003ctd\u003eOmnivore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Temperature\u003c\/td\u003e\n\u003ctd\u003e10–24°C (coldwater)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e6.5–8.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGH Range\u003c\/td\u003e\n\u003ctd\u003e5–19 dGH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSalinity\u003c\/td\u003e\n\u003ctd\u003eNot applicable (freshwater)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable For\u003c\/td\u003e\n\u003ctd\u003eBeginners with a pond or very large coldwater tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReef Safe\u003c\/td\u003e\n\u003ctd\u003eNot applicable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlant Safe\u003c\/td\u003e\n\u003ctd\u003eNo — grazes and uproots plants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eSuitable Tank Mates\u003c\/h2\u003e\n\u003cp\u003eOther single-tailed goldfish such as commons and shubunkins, plus other hardy coldwater pond fish of similar size and speed.\u003c\/p\u003e\n\u003ch2\u003eAvoid Keeping With\u003c\/h2\u003e\n\u003cp\u003eSlow fancy goldfish that can't compete for food, tropical fish needing heated water, and any small fish that might be eaten. Avoid crowding — they need serious space.\u003c\/p\u003e","brand":"Nick's Aquarium Oceanarium Terrarium","offers":[{"title":"Small (1-5cm)","offer_id":55232824082723,"sku":"AA3656-S","price":9.95,"currency_code":"AUD","in_stock":false},{"title":"Medium (5-10cm)","offer_id":55232824115491,"sku":"AA3656","price":12.95,"currency_code":"AUD","in_stock":false},{"title":"Large (10-15cm)","offer_id":55232824148259,"sku":"AA3656-L","price":17.95,"currency_code":"AUD","in_stock":false},{"title":"X-Large (15-30cm)","offer_id":55351969906979,"sku":"AA3656-XL","price":22.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/red-crystal-comet-carassius-43091451150627.webp?v=1790306577","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/red-crystal-comet-carassius-auratus","provider":"Nicks AOT","version":"1.0","type":"link"}