Acanthurus triostegus, like other surgeonfish, can be found in large schools that swim across reefs, grazing on algae

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Acanthurus triostegus, like other surgeonfish, can be found in large schools that swim across reefs, grazing on algae

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Acanthurus triostegus, like other surgeonfish, can be found in large schools that swim across reefs, grazing on algae photo copyright NOAA Fisheries taken at and featuring the Environment class

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