Acanthurus bahianus
| Identification | Grayish to brownish body that can shift dramatically in shade. The tail has a white margin and a yellow crescent at its base. Often confused with the Doctorfish but distinguished by the absence of vertical bars. |
| Maximum Length | Up to 14 inches (35 cm) |
| Origin | Western Atlantic — Massachusetts to Brazil, Caribbean |
| Minimum Tank Size | 150 gallons |
| Reef Compatible | Yes |
Behavior
An Atlantic tang that is more commonly seen in public aquariums than private reef tanks. Peaceful and adaptable, it works well in large Caribbean-themed aquariums. Grazes constantly on algae, making it useful for algae control.
Diet & Feeding
Herbivore. Provide dried seaweed, spirulina, and algae-based pellets. Naturally grazes on benthic algae in shallow coastal reefs.