Freshwater Aquariums & Habitat: How To Keep Your Koi Safe And Healthy In Your Aquarium (And Your Home)

Most koi fish can grow to over a foot long. An outdoor pond is best suited for housing koi long-term. Goldfish can often be found in colors and patterns that look like koi. They are only 10-12 inches when they are full grown. In most cases, a 500-gallon tank is a bare minimum for even two or three koi each. Large, reproductively active female koi will need 500 gallon of water each to maintain their egg mass. Koi are communal fish and do not do well on their own. They make a lot of waste. When there's lots of waste coming out, your filtration system will be able to keep up. Don't eat your koi for convenience. If you are starting a new aquarium, be wary of New Fish Tank or New Pond Syndrome. Kooi are temperate fish. They do not require a fish theater. When you bring your fish indoors for winter, you should keep your water temperature at least 39 degrees Fahrenheit /4 degrees Celsius. Kooi can't spawn if the water temperature is above freezing this year. Freshwater Aquariums & Habitat is a nonprofit based in New York City. The organization's mission is to improve the quality of life in freshwater aquariums. For more information, visit www. freshwateraquariums. org. .