HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsSlender redfin Slender redfin (Pseudobarbus tenuis) Scientific name: Pseudobarbus tenuis Barnard, 1938 The Slender redfin (Pseudobarbus tenuis) is a freshwater fish of the family Cyprinidae. Native range: Africa, mountain tributaries of the Gourits and Keurbooms River systems, Cape Province, South Africa. BiologyInhabits pools in clear, flowing Fold Mountain streams. Feeds off the substrate on algae, detritus and bottom-living and other invertebrates. Breeds in summer.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePseudobarbus tenuisFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length8.0EnvironmentFreshwater; benthopelagicClimateSubtropicalDistributionAfrica: mountain tributaries of the Gourits and Keurbooms River systems, Cape Province, South Africa.Conservation status (IUCN)Near Threatened (NT)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