[Guys! I just saw this pink catepillar looking thing crawling out of a hole in my live rock! It has white spines in a double row on it's back. I can't see the whole thing because it keeps getting scared back into the hole in the rock...so far I think it's about 1 to 1 1/2 inches long. It's only about 1/4 inches wide. I don't have a camera that can take a good enough picture to show anyone. Could this be a sea slug or ??
Thanks!]
Thanks!]