What triggers and your total count of tangs and puffers, the 125g may already be too small for what you have. The medium and dwarf size angels are ok for a 125g, and even a 180g is borderline for most large angels. Only a few of the medium and none of the dwarfs could hang with the triggers. The majestic would be the only large angel I would try in a 125g, and that would depend what else you have in the tank. Crowded tanks brings out the aggression of already aggressive species; maybe temporary success while small, but it will not last.