Hi heres some info I found on
Saltwaterfish.com - Saltwater Fish, Saltwater Fish Aquariums, Tropical Fish, and Saltwater Fish Tanks
Sohal Tang - Red Sea $89.99
Acanthurus sohal
The Sohal Tang, a.k.a. Zebra Tang, is an exquisite looking fish that is possibly the most sought after of all the Tangs. These fish are very hardy, big eaters, and very active. They are a silvery-gray with numerous horizontal black stripes running along their body. Their doral, anal, and caudal fins are jet black with bright blue borders and they have some orange markings behind their pec fins and at the base of their tail. Due to their very busy nature and size they should be kept in a minimum size tank of 150 gallons. The Sohal should be one of the last fish introduced into a system and will likely not tolerate newly introduced Tangs. Keep only one per tank. They are voracious algae eaters.
The Surgeonfish family consists of fish which are colorful, thin-bodied, and usually have an oval shape. These fish have long continuous dorsal and anal fins and crescent tailfins. The scalpel at the base of their tailfin is very sharp and is used by the fish for protection from predators as well as a way of establishing itself with other fish. These fish are usually seen at reefs eating algae all day long. Some Surgeonfish can be venomous
Good luck
Brian