|size||Up to 38cm|
|locality||Inshore and Outer reefs|
|behaviour||In schools grazing on algae|
|range||Tropical Indian and Pacific Oceans|
Body is unmissably powder-blue, that is a bright sky blue. Dark blue face, yellow dorsal and white anal fin – this picture does not do it justice – it’s one of the most beautifully colourful fish. Often seen in small numbers in large schools of less colourful surgeons.