Hey guys! I have several of these growing on my live rocks. They have been ripley and sponge-like for a couple of days except for today. One of them is starting to grow an arm/tentacle ;Joyful Does anyone have any idea what they are? This one is the largest one, currently a little larger than a pencil eraser. The second one i had to play with the camera setting so you could see the ripples in it. Thanks!!!!
