Aquarist Experience Level: Beginner
Aquarium Hardiness: Moderately hardy
Minimum Tank Size: 100 gal (379 L)
Size of fish – inches: 10.6 inches (26.97 cm)
Temperament: Semi-aggressive
Temperature: 72.0 to 79.0° F (22.2 to 26.1° C)
Range ph: 8.1-8.4
Diet Type: Omnivore
 
The Convict Surgeonfish Acanthurus triostegus is one of the smaller tangs available for the aquarium. This surgeonfish seldom gets much larger than about 6 2/3 inches (17.0 cm) in length. It is a widespread Indo-Pacific and Pacific species stretching from the west at Kenya into Indonesia, at the Hawaiian Islands, and east to the lower Gulf of California to the Panamas. It rarely exceeds 7.87 inches (20 cm) with only rare specimens reported at 10.62 inches (27 cm).