Another new member!
Hello all, thought I would kick things of with a question. I have a 200litre salt water tank which is just coming into its first year. I have 2 black clowns, a sawtooth blenny and a puffer (and some clean up crew to sort the algae) to ought I have noticed for the first time a strange white ring appear on some live rock, it's about the size of a 5cent piece and when the blenny approaches it disappears in a flash when he moves away it slowly reappears from a small hole. Any thoughts as to what this is? It looks transparent, like a jelly would be. Too small to take a pic I think...