HomeFreshwater aquarium fishTetras & characinsDawn tetra Dawn tetra (Hyphessobrycon eos) Scientific name: Hyphessobrycon eos Durbin, 1909 The Dawn tetra (Hyphessobrycon eos) is a freshwater fish of the family Characidae. Native range: South America, Guyana (?). Species factsScientific nameHyphessobrycon eosFamilyCharacidae (Characins)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length4.2EnvironmentFreshwater; benthopelagicClimateTropicalDistributionSouth America: Guyana (?).Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More tetras & characinsYellow tetraHyphessobrycon bifasciatusOrnate tetraHyphessobrycon bentosiRosy tetraHyphessobrycon rosaceusEmber tetraHyphessobrycon amandaeRoyal tetraInpaichthys kerriRummy-nose tetraHemigrammus rhodostomusSee all tetras & characins SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026