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Acanthurus triostegus
6 black bars on a pale background. Hawaiian population has an oblique black bar under the pectoral fin. Grows to 10 inches.
Common on protected rocky coastlines from the shallows down to 30 ft. Feed exclusively on fine filamentous algae. Sometimes seem with Hawaiian Gregory.
Most widespread and abundant of Indo-Pacific surgeonfish. They are not territorial and have small unmarked scalpels, placing them at the bottom of the surgeonfish pecking order.
Spotted on Nov 14, 2012
Submitted on Jan 14, 2013
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