HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsBluntnose minnow Bluntnose minnow (Pimephales notatus) Scientific name: Pimephales notatus Rafinesque, 1820 The Bluntnose minnow (Pimephales notatus) is a freshwater fish of the family Cyprinidae. In the aquarium it needs water at 33°C (91°F). Bluntnose minnow care at a glanceTemperature33°C (91°F) BiologyOccurs almost anywhere in its range but most common in clear rocky streams; also inhabits large rivers, reservoirs and glacial lakes to the north. Feeds on algae, detritus, entomostraca, and immature insects, especially midge larvae and pupae.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePimephales notatusFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length11.0Common length6.5EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: Great Lakes, Hudson Bay (Red River) and Mississippi River basins from southern Quebec to southern Manitoba, Canada and south to Louisiana, USA; Atlantic Slope from St. Lawrence River in Quebec to Roanoke River in USA; Gulf Slope from Mobile Bay drainage in Alabama to Mississippi River, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tmax=5) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026