Titan Triggerfish (Balistoides viridescens) ゴマモンガラ size 75cm
As the name implies the Titan Triggerfish are large. They are also known to attack when guarding their nests. Smaller fish can also attack when guarding nests too, but these will cause damage. Amami 2019
Another Titan Triggerfish. My problem is usually with getting close enough. If they are attacking it would be hard to get a good picture too. Amami 2019
A small Titan Triggerfish showing its teeth. Amami 2024