I can vouge for this, I have this one devils hand that will retract for a week. After that its polyps would come out only half way for the next week then they would come out fully for about a month then repeat the process.David Magen":uc2cxn9d said:Each poly should have eight "fingers," but leather/finger/devil hand can be a little bit unpredictable, so leave it alone and see if it will show up more. Sometimes the polyps retracted for weeks at a time, and there is no appearant reason, and the coral is still healthy.