Pics please . I have a leather that gets tempramental every now and agian , and right before it sloughs off old tissue then it is fine. Is there any black tissue on it ? What are the other corals in the tank with it ? What fish do you have , what inverts ,shrimp ect ?What is your flow like . Post up all perameters Spg, temp, Ammonia , NitrItes , NitrAtes , Phosphates . How old are your lights ? You can take a turkey baster and blow it off . With out pics I can only hazzard a guess and say give it some time it is still acclimating , and should show its polyps again .
10 gallon ~6.5 gallon custom