I had a terrible time with these guys, they were all over my tank. I've tried all the remidy to get rid of these pest. Then I did some research and tried a Bristle Tail Filefish. I order one from Will at A.O. After a week I notice a Big drop of these annomie in my tank. The fish hasnt touch any other coral. And is always changing its color. Its been about a month now, with no proplems I can notice. I think its worth a try, with anyone with this proplem. In the long run its cheaper then buying all the chemicals that they have out to kill these pest and safer. The fish is a slow mover so if things didnt work out you could net him or her.