Twospot Surgeonfish (Ctenochaetus binotatus)

Also known as Blue-eye Bristletooth, Blue-eye Surgeonfish, Blue-eye Tang, Doctorfish, Lancetfish, Thorntail, Thorntail Fish, Twospot Bristletooth, Twospot Bristletooth Surgeonfish, Twospot Bristletooth Tang, Twospot Tang

Description

Also known as Blue-eye Bristletooth, Blue-eye Surgeonfish, Blue-eye Tang, Doctorfish, Lancetfish, Thorntail, Thorntail Fish, Twospot Bristletooth, Twospot Bristletooth Surgeonfish, Twospot Bristletooth Tang, Twospot Tang.

Found singly, grazing on the surface of algae covered coral and rubble areas, in deep lagoons and seaward reefs. Varies in colour with light.
They feed on algae and detritus.
Length - 22cm
Depth - 2-50m
Widespread Indo-Pacific

Surgeonfish have a blade like spine in the tail that points outwards when bent, unicorns have two hook-like plates along the tail, these are used for defence and are as sharp as a surgeons scalpel, hence the name "Surgeonfish".
Some species are venomous. Ref: https://www.fishbase.se/summary/6012

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