I thought that fragging my Xena, which has exploded in my nano cube, would be relatively easy. I talked with the guys at my LFS, they even sat down and let me frag one of their xenas for them so I would know exactly how to do it, and I read what others had done. Well... I fragged about 10 pieces of it and rubberbanded it to some LR rubble. I go back and check it the next morning and the things are cutting themselves loose. The part that was under the rubberband had died on some of them, and the remaining portion was rolling or floating in some cases around the tank. What gives? i've sinced put some of them between two rocks and loosely rubberbanded others back in place, but am I doing something wrong?