In this photo you can see a colorful Broomtail Wrasse (cheilinus lunulatus). The family of wrasses (labridae) is one of the most diverse Among the fish. They vary from several cm in size to almost 2 meters long. This Broomtail Wrasse was more than 30 cm long.
A feature of this family of fishes is specially curious: they are born as females, but can change sex to male if needed. Wrasses are active predators, they hunt smaller fishes and shellfish. Probably the most known is the Cleaner Wrasse, a small fish feeding on parasites, pieces of dead skin and scales. Other fish concentrate in their "cleaning stations" and willingly submit themselves to this service.