Zebrasoma gemmatum

Zebrasoma gemmatum, commonly known as the Gem tang, is a beautiful black tang with white spots and a yellowish caudal fin.

 It's rarely aggressive towards other fish, but can be towards other other tangs and food competitors. Once hierarchy is established it usually poses no problems. 

Like other tangs, it will eat meaty foods, but it's important it can graze on algae/seaweed the entire day to ensure it will stay healthy. So feed flakes/pellets multiple times a day and make sure there is always seaweed available.