The Bursa Triggerfish, once it is comfortable in your aquarium, displays an active interest in it's evironment and it's keeper. But be sure you keep it well fed. Also make sure it has plenty of space, and a cave or rock formation where it can retreat to. The Bursa Triggerfish have been known to be possible troublemakers. Ways to keep a peaceful tank is to house appropriate fish together that have similar needs and can hold their own. In this case larger protein eaters such as surgeonfishes, groupers, and basses. Some eels and puffers can be appropriate too.