One Atlantic blue tang. Have had him 11 months, he was 1" long when I caught him, now 4" and getting blue( was yellow). He gets nori, picks algae, eats anything put in the tank, sliced fish, brine shrimp, flakes. Hes in a 125, reef with a 55 gallon sump. About 20 other atlantic fish with him, hes the biggest, was the smallest, thinks hes a bully now.