HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsSlim minnow Slim minnow (Pimephales tenellus) Scientific name: Pimephales tenellus Girard, 1856 The Slim minnow (Pimephales tenellus) is a freshwater fish of the family Cyprinidae. BiologyInhabits sand-bottomed and gravel-bottomed pools and runs of creeks and small rivers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePimephales tenellusFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length7.0Common length5.1EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: in southern Missouri, eastern Kansas, Arkansas and northeastern Oklahoma, USA. Two subspecies: Pimephales tenellus parviceps in the Castor, St. Francis, Black, White, lower Kansas, Ouachita and Little River systems; Pimephales tenellus tenellus in the Arkansas River drainage west of Arkansas-Oklahoma state line.Conservation status (IUCN)Not EvaluatedThreat 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