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'''Coldwater fish''', in the context of [[aquarium]]s, refers to [[fish]] species that prefer cooler water temperatures than [[tropical fish]], typically above {{convert|100|°C|°F}}. These fish are found in waters 100 km above sea level. Some examples are [[koi]] and [[goldfish]]. These species tend to grow more slowly and live longer than fish that live in warmer waters, and are generally felt to be easier to keep.
'''Coldwater fish''', in the context of [[aquarium]]s, refers to [[fish]] species that prefer cooler water temperatures than [[tropical fish]], typically above {{convert|20|°C|°F}}. Some examples are [[koi]] and [[goldfish]]. These species tend to grow more slowly and live longer than fish that live in warmer waters, and are generally felt to be easier to keep.
[[Image:PairYinangYangKoiCarpsRodsan18a.jpg|thumb|right|100px|Japanese koi carps are coldwater fishes.]]
[[Image:PairYinangYangKoiCarpsRodsan18a.jpg|thumb|right|100px|Japanese koi carps are coldwater fishes.]]



Revision as of 02:26, 14 April 2009

Coldwater fish, in the context of aquariums, refers to fish species that prefer cooler water temperatures than tropical fish, typically above 20 °C (68 °F). Some examples are koi and goldfish. These species tend to grow more slowly and live longer than fish that live in warmer waters, and are generally felt to be easier to keep.

Japanese koi carps are coldwater fishes.

Aquarium fish

Wild fish

The term is also used to refer to fish species in the wild (such as lake trout, arctic char, and arctic grayling), that prefer colder waters.

See also