Discus

Description:

Like cichlids from the genus Pterophyllum, all Symphysodon species have a laterally compressed body shape. In contrast to Pterophyllum, however, extended finnage is absent giving Symphysodon a more rounded shape. It is this body shape from which their common name, "discus", is derived. The sides of the fish are frequently patterned in shades of green, red, brown, and blue. The height and length of the grown fish are both about 20–25 cm (8–10 in)

Habitat:

Symphysodon species inhabit the margins of floodplain lakes and rivers in the Amazon Basin of lowland Amazonia,[8] where it is part of the highly diverse Neotropical fish fauna.

Notes:

Photo taken at the Aquatic Critter, Nashville, TN