Discus (symphysodon) is a genus of cichlids native to the Amazon River basin. Due to their distinctive shape and bright colors, discus are popular as freshwater aquarium fish. They are sometimes referred to as pompadour fish.
Kole tangs always have that bright yellow ring around their eyes, but usually start out with dull brown bodies as juveniles. It's not until they're about six months old that they turn orange and their blue spots and stripes begin to come out.