I needed to replace this rock that has been moving around on me for awhile now. It had some nice zoas attached to it of late and I just didn't want to mess with it because it was a cornerstone piece to my rock structure. Oh well, I took it out (only broke about 5-6 pieces of coral) and was going to replace it with a rock from my old nano; when I saw some movement in the rock. I pulled out this worm thingy and then another. I ended up busting the rock to pieces and look what I found.
Here is the big one up closer

Here is the big one up closer
