A 70 gallon or larger aquarium is necessary to provide plenty of swimming room. It is aggressive towards other Tangs, therefore, it is best to only keep one per tank. It will not harm sessile invertebrates in the reef tank environment.
Although Tangs will eat meaty foods along with the other fish in the aquarium, it is important that they are offered plenty of marine based seaweed and algae. This will strengthen their immune system, reduce aggression and improve their overall health.