I would greatly appreciate any help I can get on IDing these new white growths on my live rock. I've been scouring the internet for hours and I can't find anything that seems to fit. At first I was afraid that it was aiptasia but they are attached directly to the rock and are not on a stem of any kind. Is this a sponge? A fungus? Some type of worm? I just want to know if I should be figuring out how to get this out of my tank or not. Any help or suggestions are greatly appreciated!