Also known as Black Triggerfish, Bluebelly Sufflamen Trigger, Bluebelly Triggerfish, Bluethroat Trigger, Golden-finned Triggerfish, Golden-lined Triggerfish, Halfmoon Picasso Fish, Halfmoon Trigger, Halfmoon Triggerfish, Haremic Triggerfish, Whiterim Trigger, Whiterim Triggerfish, Whitetail Trigger, Whitetail Triggerfish, White-tailed Triggerfish, Whitetip Sufflamen Trigger, Whitetip Trigger, Yellowstreak Triggerfish, Yellow-backed Triggerfish.
Found singly and territorial, over shallow, silty, lagoons to clear outer reef walls, and seaward reefs. Adults with distinctive tail fin pattern, ending in a part-moon shaped white margin.
They feed on invertebrates.
Juveniles brown/yellow on top, and white from below eye level, separated by black strip.
Length - 30cm
Depth - 1-35m
Widespread Indo-West Pacific
Triggerfish have a hard spine Dorsal Fin that can be locked.
When sleeping this spine is used to wedge them into place in a crevasse and so deter predators from pulling them out of their bed!
The spine is also held erect as a warning to other fish to stay away.
Several large Titans blow shallow depressions in the sand for nesting and if approached will raise this spine as a warning, if ignored they may charge, even divers! especially the Titan Triggerfish who will take a tasty bite!! Beware!!! Ref: https://www.fishbase.se/summary/Sufflamen-chrysopterum