The bronze corydoras (Corydoras aeneus), green corydoras, bronze catfish, lightspot corydoras or wavy catfish is a tropical freshwater fish in the “armored catfish” family, Callichthyidae, often kept in captivity by fish keepers. It is widely distributed in South America on the eastern side of the Andes, from Colombia and Trinidad to the Río de la Plata basin.[1] It was originally described as Hoplosoma aeneum by Theodore Gill in 1858 and has also been referred to as Callichthys aeneus.
The adult size is 2 to 3 inch for males and a slightly larger 3 to 4 inch for females Females have a slightly higher body frame than males in accordance with their larger abdominal region. Their average life span is 10 years. It has a yellow or pink body, white belly, and is blue-grey over its head and back. Its fins are yellow or pink and immaculate. In common with most Corydoras the dorsal, pectoral and adipose fins have an additional sharp barb and have a mild poison which causes fish which try to attack them to get stung. A brownish-orange patch is usually present on the head, just before the dorsal fin, and is its most distinctive feature when viewed from above in the stream. Their upper sides are often a greenish color, which is the reason another common name for this fish is the green corydoras.