This fish of the group of surgeons, is very habitual in aquarofilia, became quite famous because its appearance in the film of Disney "Looking for Nemo" and its sequel "Looking for Dory".
Paracanthurus hepatus, of the family of the Acanthuridae, this regal tang fish is nicknamed the surgeonfish by the removable spine that it carries on each of the two sides of the birth of the caudal fin.