I have done a lot of research on triggers because i really want to put one in my tank when everything is ready. This includes book and online research and asking lots of questions at my LFS
, employees of which are very knowledgable.(all have to pass the M-1 certification test before handling costumers)
From my research i have decided that Riggens Trigger, Pink Tail Trigger, Blue Throat Trigger, and Crosshatch trigger can all be kept with not only smaller fish, but in a reef tank with limited to no damage.