So I had a bubblegum millepora that was doing very poorly in my tank. It almost definitely wasn't going to make it anyway so I moved it lower on my rocks to see if a new placement could help it. I didnt bother gluing it to the rock. This was about a week ago. I completley forgot about it because it was out of sight so I forgot it even existed. Well I look over at my tank and my urchin has some new camouflage... and yes the frag is stuck to the urchin and moving with him