Fish ID: Blue Triggerfish

Triggerfish blue triggerfish hp
Family Triggerfish (BALISTIDAE)
species Odonus niger
size Up to 40cm
locality Around reefs well above the bottom
behaviour Sometimes hiding in holes; sometimes eating zooplankton high in stream above reef
range Tropical Indian and Pacific Oceans

Classic trigger-shape: symmetrical rear dorsal and anal fins but larger, rounded and not even width like other triggers. Lobes on the tail and as the name suggested: blue all over. Not to be confused with the Redtooth where the head is a paler blue than the body.