HomeFreshwater aquarium fishCatfish & plecosRust corydoras Rust corydoras (Corydoras rabauti) Scientific name: Corydoras rabauti La Monte, 1941 The Rust corydoras (Corydoras rabauti) is a freshwater fish of the family Callichthyidae that grows to about 5 cm (2 in). It is peaceful, suits community aquariums and needs a tank of at least 75 L (20 US gal), water at 23–25°C (73–77°F) and a pH of 6.0–8.0. Native range: South America, Upper Amazon, Solim?es, and Negro River basins. Rust corydoras care at a glanceTemperamentPeacefulCommunity tankExcellentAdult size5 cm (2 in)Minimum tank75 L (20 US gal)Temperature23–25°C (73–77°F)pH6.0–8.0Hardness2–25 dGH (36–446 ppm)DietOmnivore. Accepts flakes. Species factsScientific nameCorydoras rabautiFamilyCallichthyidae (Callichthyid armored catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length5.0EnvironmentFreshwater;; pH range: 6.0 - 8.0; dH range: 2 - 25 demersalClimateTropicalDistributionSouth America: Upper Amazon, Solim?es, and Negro River basins.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Fecunditi is at least about a hundred eggs) More catfish & plecosPygmy corydorasCorydoras pygmaeusPretty corydorasCorydoras pulcherThreestripe corydorasCorydoras trilineatusSixray corydorasAspidoras pauciradiatusPastaza corydorasCorydoras pastazensisPanda corydorasCorydoras pandaSee all catfish & plecos SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.Last updated 28 September 2026