Balistapus Undulatus-Undulatus
This is a very aggressive trigger, even though it doesn't get to large, only about 10". It's pretty shy when people come by but it will attack everything in the tank. It's best in a FO or Fowlr tank, but you need to use large pieces of rock as it will pick them up from time to time. Best if housed by itself or with very aggressive fish like other triggers and groupers.
People get suckered into buy this fish as they see a small colorful trigger that seems shy, but once they get it home it turns into a terror.