HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsFreshwater minnow Freshwater minnow (Zacco platypus) Scientific name: Zacco platypus Temminck & Schlegel, 1846 The Freshwater minnow (Zacco platypus) is a freshwater fish of the family Cyprinidae. In the aquarium it needs water at 10–22°C (50–72°F). Native range: Asia, northern China to northern Vietnam. Freshwater minnow care at a glanceTemperature10–22°C (50–72°F) BiologyAdults are common in streams and rivers with rapid water flow, but not deep or stagnant waters. Feed on zooplankton, small crustaceans, macroscopic algae, small fish and detritus.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameZacco platypusFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Common length13.0EnvironmentFreshwater; benthopelagicClimateSubtropicalDistributionAsia: northern China to northern Vietnam.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026