I used to have a trigger fish in my reef tank... but my reef tank really didn't have much back then... it was just few LR and a huge colt coral. However, he did not destroy the colt coral nor chew apart the LR. I heard from many people that triggers are not compatible with reeftanks and I strongly agree with them but again, when it comes to saltwater fish... it all depends on the personality of the fish you purchase.