Corydoras Catfish ~ AlbinoDescription & Care Guide: Corydoras Catfish are small, peaceful bottom dwelling fish that are loved for their charming appearance and excellent tank cleaning abilities. These armored catfish are covered with bony plates and have whisker like barbels around their mouths. Corydoras are highly social and should be kept in schools of at least 4 6 fish to feel secure and exhibit natural behavior. They are great for community tanks due to their peaceful