Care: 
Expert
Diet: 
Algivorous
Light: 
Medium
Place of origin: 
Melanesia
AKA: 
Acanthurus hirudo - Acanthurus pentazona - Acanthurus subarmatus - Acanthurus triostegus marquesensis - Acanthurus triostegus sandvicensis - Acan
The Convict Tang, Acanthurus triostegus, has an incredible white/silver colour with six black vertical stripes across the body. It is a completely reef safe surgeon, making it an excellent addition to most aquariums. It should be fed with frozen food and seaweed, such as Gamma Natural seaweed strips.
The common name "surgeonfish" is derived from a characteristic that clearly distinguishes Acanthuridae from other fish families: the spines or "scalpels" on the caudal peduncle, one or more on each side. Based primarily on differences in this characteristic, the family can be divided into three subfamilies: The Acanthurinae, in which the peduncular spine  rests in a groove and can be erected in defence during the fights, the Nasinae and Prionurinae in which the peduncular feature is arranged as one or more fixed blades on each side, that are sharp and elongate with age.