HomeFreshwater aquarium fishCatfish & plecosFalse blochi catfish False blochi catfish (Corydoras delphax) Scientific name: Corydoras delphax Nijssen & Isbr?cker, 1983 The False blochi catfish (Corydoras delphax) is a freshwater fish of the family Callichthyidae. In the aquarium it needs water at 22–26°C (72–79°F). Native range: South America, In?rida River and upper Orinoco River basin in Colombia. False blochi catfish care at a glanceTemperature22–26°C (72–79°F) Species factsScientific nameCorydoras delphaxFamilyCallichthyidae (Callichthyid armored catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length4.9EnvironmentFreshwater;; pH range: 6.0 - 8.0; dH range: 2 - 25 demersalClimateTropicalDistributionSouth America: In?rida River and upper Orinoco River basin in Colombia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More catfish & plecosCorydoras armatusAdolf's catfishCorydoras adolfoiSalt and Pepper catfishCorydoras habrosusFalse spotted catfishCorydoras leucomelasGreen gold catfishCorydoras melanotaeniaSchwartz's catfishCorydoras schwartziSee 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