HomeFreshwater aquarium fishCatfish & plecosSnow pleco Snow pleco (Pterygoplichthys anisitsi) Scientific name: Pterygoplichthys anisitsi Eigenmann & Kennedy, 1903 Photo: https://www.scotcat.com/loricariidae/pterygoplichthys_anisitsi4.htm The Snow pleco (Pterygoplichthys anisitsi) is a freshwater fish of the family Loricariidae. In the aquarium it needs water at 21–24°C (70–75°F). Native range: South America, Paraguay, middle Paran?, Bermejo, and Uruguay River basins. Snow pleco care at a glanceTemperature21–24°C (70–75°F) Species factsScientific namePterygoplichthys anisitsiFamilyLoricariidae (Armored catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length42.0EnvironmentFreshwater;; pH range: 6.5 - 8.2; dH range: ? - 25 demersalClimateTropicalDistributionSouth America: Paraguay, middle Paran?, Bermejo, and Uruguay River basins.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; aquarium: commercial More catfish & plecosBlue-eye panaquePanaque suttonorumLeopard plecoPterygoplichthys gibbicepsRoyal panaquePanaque nigrolineatusFlagtail catfishDianema urostriatumPorthole catfishDianema longibarbisXingu corydorasCorydoras xinguensisSee all catfish & plecos SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026