Thanks for the tips everyone. I ended up just redoing my rock work a bit and was able to rotate the rock it was on so that it is in a better position. Now, it will undoubtedly move on me. Unfortunately it was attatched to the biggest rock in my tank that was the foundation of the rockwork, so moving it meant moving the whole stinkin tank around. And of course the clown figured out that it only hurts when he bites me in the wrist above the latex gloves. Little butthead. Thanks again.