HomeFreshwater aquarium fishCatfish & plecosSychr's catfish Sychr's catfish (Corydoras sychri) Scientific name: Corydoras sychri Weitzman, 1960 The Sychr's catfish (Corydoras sychri) is a freshwater fish of the family Callichthyidae that grows to about 4.3 cm (1.7 in). It is easy to keep and peaceful, suits community aquariums and needs water at 22–26°C (72–79°F) and a pH of 6.0–7.2. Native range: South America, Nanay River basin, Loreto, Peru. Sychr's catfish care at a glanceCare levelEasyTemperamentPeacefulCommunity tankGoodAdult size4.3 cm (1.7 in)Temperature22–26°C (72–79°F)pH6.0–7.2Hardness2–25 dGH (36–446 ppm)DietOmnivore. Accepts flakes. Species factsScientific nameCorydoras sychriFamilyCallichthyidae (Callichthyid armored catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length4.3EnvironmentFreshwater;; pH range: 6.0 - 8.0; dH range: 2 - 25 demersalClimateTropicalDistributionSouth America: Nanay River basin, Loreto, Peru.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More catfish & plecosCorydoras sterbaiFalse network catfishCorydoras sodalisSchwartz's catfishCorydoras schwartziGreen gold catfishCorydoras melanotaeniaFalse spotted catfishCorydoras leucomelasSalt and Pepper catfishCorydoras habrosusSee 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