Britski's catfish (Corydoras britskii) is a tropical freshwater fish belonging to the Corydoradinae sub-family of the Callichthyidae family native to South America where it is found in the upper Paraguay River basin in Brazil. This species was formerly classified as Brochis britskii. It lives in a tropical climate in water with a temperature range of 20–24 °C (68–75 °F). It feeds on worms, benthic crustaceans, insects, and plant matter. It lays eggs in dense vegetation and adults do not guard the eggs.