HomeFish encyclopediaRay-finned fishesCharacinsCharacinsCopper tetra Copper tetra (Hasemania melanura) Scientific name: Hasemania melanura Ellis, 1911 The Copper tetra (Hasemania melanura) is a freshwater fish of the family Characidae. Native range: South America, Igua?u River basin. Species factsScientific nameHasemania melanuraFamilyCharacidae (Characins)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length4.4EnvironmentFreshwater; pelagicClimateTropicalDistributionSouth America: Igua?u River basin.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026