Triggerfish; Balistidae

Triggerfish have small mouths but really strong jaws! When SCUBA diving at Sail Rock or Koh Tao we have learnt to keep well away from the Titan Triggerfish in the nesting season, as they can become seriously territorial.

Titan Triggerfish; Balistoides viridescens

Named because of its relatively large size and the erectile spine on its back. They have powerful jaws and should be avoided when nesting!

Yellowmargin Triggerfish; Balistoides flavimarginatus

A big but peaceful Trigger, with more of a yellow/pinky colouration.