I hate to ask, but maybe you all know. I have these black small cloves/polyp growing like wild zoas, seem to be connected to a black sponge looking thing below the rocks... Any idea what it is, and how I can get rid, seems like it will take over coral zones that I dont want and its not very pleasing to the eyes, Ill try and get a photo when the lighting is on. Good news is I got rid of my aiptasia problem.