Fish ID

Looks like we might be looking at Acanthurus dussumieri or Acanthurus xanthopterus.
EDIT: cross-post

In A. dussumieri the base of the pectoral fin and the upper edge are yellow, not the outer parts, and the caudal spine is white. The upper and lower parts at the base of the tail should be orange.

Having said that, I wouldn't rule out a hybrid between dussumieri and xanthopterus.

@Hix That is always a possibility.

Thank you very much !