Aspidoras rochai, commonly known as the loach catfish, is a tropical freshwater fish belonging to the Corydoradinae sub-family of the family Callichthyidae. It originates in inland waters in South America, and is found in coastal rivers in Ceará, Brazil. The fish will grow up to 4.4 cm in standard length. It lives in a tropical climate in water with a 6.0–7.5 pH, a water hardness of up to 14 dGH, and a temperature range of 21 –. It feeds on worms, benthic crustaceans, insects, and plant matter. It lays eggs in dense vegetation and adults do not guard the eggs.