i have a tailspot in one of my reef tanks and he is doing what can only be described as attacking my goniopora,clove polyps, and frogspawn. it does not seem he is eating them as he isnt taking chunks out of them, what he is doing is head butting them and making them very mad but he isnt actually eating them. ive never seen this or heard of it since hes not really eating them like i said hes just making a really really good job they stay closed and ticked off.