These two "Things!" have shown up on a piece of LR that I have had in my tank for over a year and quite honestly I am puzzled as to what they are. At my best guess it is some form of encrusting SPS coral. It is definitly soft to the touch not rough but it does not move, it will not pull back like a mushroom when poked or prodded. I have never seen any visible polyps on it but have not had a chance to observe at night. Growth rate is slow-medium but it definitly is expanding and growing over the existing rock. Any ideas as to what it really is?
