Convict Tang

Overview

The Convict Tang is a pale silver-white surgeonfish marked with five to six bold black vertical bars, giving it a distinctive striped appearance reminiscent of a convict's uniform, hence the common name. Unlike many other tangs that are solitary or territorial, this species naturally schools in large groups in the wild, and can sometimes be kept in small groups in a sufficiently large aquarium.

It's a hardy, adaptable tang that adjusts well to aquarium conditions, making it a reasonable choice for keepers wanting an active, schooling-style tang without the more demanding requirements of some other Acanthurus species.

Given adequate space, it's a reliable, long-lived addition to a larger reef or fish-only system.

Compatibility

Convict Tangs are somewhat more tolerant of conspecifics than many other tangs, and small groups can sometimes be kept together in a large enough tank if introduced simultaneously. They can still show territorial aggression toward other differently shaped tangs.

This species is fully reef safe and won't bother corals, clams, or invertebrates.

Health & quarantine

A minimum four-week quarantine is recommended given general Acanthurus susceptibility to marine ich, with attention to appetite and breathing in the first two weeks. Strong water flow and stable water quality support long-term health, and a varied algae-rich diet helps maintain condition.