Hey reefers. I have a small candy cane frag with two heads. It has coralline algea growing on the plug it’s on. I am just now noticing on the places where the coralline is growing up the stalk the coral tissue is receding. The frag is doing fine and is open otherwise. Is the coralline algea hurting my LPS? And if so how do I kill it and stop it from causing my candy canes tissue to recede?