hi i have a piece of acro and the other day someone got the bight idea to open all the windows because it was "coool' out side. NOT my tank was up too 88 in no time so. I noticed that the bottom base of my acro had lost some tissue. The rest of it is fine and pylops are out and everything looks fine. I came home today and I noticed that the white had spread a little. Will this continue to go until the coral is gone? Or is there a way to stop it??? thanks!