HomeFish encyclopediaRay-finned fishesCatfishClaroteid catfishesFlatnose catfish Flatnose catfish (Anaspidoglanis macrostomus) Scientific name: Anaspidoglanis macrostomus Pellegrin, 1909 The Flatnose catfish (Anaspidoglanis macrostomus) is a freshwater fish of the family Claroteidae. In the aquarium it needs water at 23–27°C (73–81°F). Flatnose catfish care at a glanceTemperature23–27°C (73–81°F) BiologyAnal soft rays: 8 - 12; Vertebrae: 32 - 38Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAnaspidoglanis macrostomusFamilyClaroteidae (Claroteid catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length24.0EnvironmentFreshwater;; pH range: 6.5 - 8.0; dH range: 4 - 25 demersalClimateTropicalDistributionAfrica: Chiloango basin in Angola, central basin of the Congo Lo?m? basin in Congo, Ogoou? basin in Gabon and the basins of the Nyong, Sanaga and Dja in Cameroon.Conservation status (IUCN)Least Concern (LC)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