I got an open brain coral about a month ago and it was doing good for first week or so then started receeding so after doing a bit more research on them moved it to a low flow area on the sandy bottom and has continued to slowly receed but in last 24 hours has started to receed faster and just got up this morning it is majorly bloated and it's feeder tentacles are right out, I feed it every other day have checked water parameters and are all fine I also have in the tank a torch coral a condy anemone and 2 clownfish and there all doing great, the brains still eating fine when ever offered food, any help would be much appreciated