Corydoras AdolfoiVery peaceful community fish which is best kept in groups of 5 to 6 or more. As with most Corydoras, these fish will eat most food which sinks to the bottom of the tank and great for clearing leftover food in Discus aquariums. Requires a sand or small gravel substrate and prefers a planted tank. Keeping a cory on sharp or large gravel can lead to damage to their barbels, which when infected will make it hard for the cory to find food. Corys are