Female will lay their eggs few days before new and full moon after male and female will perform some prespawnings behavior like blowing and touching, to create their nest on sandy or rocky area. They will blow water to create a hole in the floor where the female will lays his eggs. The male will protect and defend the territory from any species swimming too close, and also from the other male triggerfish. Generally, a male will fecund the eggs of few females within his territory.
Another good way to avoid any attack would be to observe their change of behavior.
They would rise their dorsal fin first, then lean on one side as a last warning, then finally if we are getting even closer to them, they will swim towards us trying to bite whatever they can catch.
This generally happen only when they are keeping an eye on their eggs...
They are less common than the titan, the redtooth or the yellow margin, but still can be found in the archipelago.
They will go and hide in cracks and little cavities to rest. They form school and eat mainly plankton.