Breed encyclopedia

Koi Freshwater Fish

Ornamental carp bred in Japan for colour and pattern; a pond fish, not an aquarium fish.

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Koi facts

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FactValueSource
OriginJapan (selectively bred from common carp)Britannicachecked 3 Sept 2026High confidence
PurposeOrnamental pond fishBritannicachecked 3 Sept 2026High confidence
TemperamentPeaceful and sociable; needs a large, filtered pond rather than a tankDial A Vetchecked 3 Sept 2026Medium confidence
Lifespan25–30 yearsNote: Well-kept koi routinely outlive their first owner.Dial A Vetchecked 3 Sept 2026Medium confidence

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Other Freshwater Fish breeds

Other Freshwater Fish breeds in the encyclopedia.

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Every fact on this page comes from curated reference data with a named source. Qasvah does not author breed facts.