Also known as Bristletooth Tomini Tang, Doctorfish, Flamefin Tang, Lancetfish, Orange-tipped Bristletooth, Thorntail, Thorntail Fish, Tomini Bristletooth, Tomini Bristletooth Tang, Tomini Surgeonfish, Tomini Tang, Yellowtip Bristletooth.
Found singly or in small schools over steep coral drop-offs of sheltered reefs rich in coral growth.
They feed on algae and zooplankton.
Length - 16cm
Depth - 3-45m
Widespread Western Central 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.in/summary/Ctenochaetus-tominiensis.html