Species of the genus Brochis strongly resemble the Corydorus, but they are larger and have more rays in the dorsal fin. The Emerald Green Cory or Iridescent Plated Catfish will generally grow to about 3 inches (8.4 cm), though it can reach up to 4 inches (11.2 cm). Despite its size, this catfish is very peaceful, and recommended for a community aquarium.

There are three species in the genus Brochis with the Emerald Green Cory or Iridescent Plated Catfish, Brochis splendens, being the most commonly available. All three are from South America and have virtually the same maintenance and feeding requirements.