Hi, I have this growing on the underside of some live rock, never seen it before, is it some type of sponge. Not a great picture, it has branches and is white. Thanks for looking
Yes, don't remember what type it is exactly, but it is sponge. I have a ton of it in my tank. Every now and then the flame angel would pick on it, but now that I got rid of her it's growing on the underside of almost every rock in my tank.
