Its still in the tank this morning. I do have a sixline wrasse, but the blob is pretty big! I know you can't tell from the pics, but its bigger than a golf ball and appears to be solid based on how it moves. I have heard that wrasses make cocoons, but I have never seen one from mine before and this seems much too big to have been created by my sixline. I also have 2 false percs, a court jester goby and a unicorn tang.