Well the trigger preety much keeps to itself and doesn't pick at the corals, however on the other hand the lemonpeel is a sly little bugger who always has to pick at everything, here there everywhere. He has demolished most of my tongue corals and my coral garden however many of the others still in there he has left alone. Its funny that the dealer told me that they will be fine with all corals... I think he needs to read his books ;D Do you guys think that its probably not worth trying to put one in. I was thinking a metallic blue crocea or maxima clam in about the 5-6 inch range? Thoughts and thanks for all the help!!