im battling a crazy problem, lost my CBB and baby was born, now everysingle rock has apps on it. ive tried aptasia x with no help just got worse. berghia, first set ate it all, second set did nothing. CBB, too hard to keep alive. Peppermints, I have not tired, but I think I am going to do that next before break down to add new sand and rock. after tank sterilize lol... from my experiance best method is natural, chemicals just make them ****ed off