Fish ID: Roundhead Parrotfish

Parrotfish roundhead parrotfish chlorurus strongycephalus cki family
Family Parrotfish (SCARIDAE)
species Chlorurus strongycephalus
size Up to 50cm
locality Coastal, lagoon and coral reefs
behaviour Nibbling on the reef
range Indian Ocean

Mature males recognised by round forehead and yellow bar behind the mouth. Tail filaments get longer with age. Intermediate phase can be almost red-yellow, but still with blue margins on fins.