HomeFish encyclopediaRay-finned fishesCharacinsAfrican tetrasRedfin robber Redfin robber (Brycinus affinis) Scientific name: Brycinus affinis G?nther, 1894 The Redfin robber (Brycinus affinis) is a freshwater fish of the family Alestidae. In the aquarium it needs water at 22–28°C (72–82°F). Native range: Africa, Pangani, Wami, Ruvu, Rufiji, Kilombero, Ruaha, Athi, Tana River, Juca, Webi Shebeli. Redfin robber care at a glanceTemperature22–28°C (72–82°F) Species factsScientific nameBrycinus affinisFamilyAlestidae (African tetras)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length14.7EnvironmentFreshwater; pelagicClimateTropicalDistributionAfrica: Pangani, Wami, Ruvu, Rufiji, Kilombero, Ruaha, Athi, Tana River, Juca, Webi Shebeli.Threat to humansHarmlessResilienceHigh, 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