[I actually fragged some of mine this weekend - it was the first frag I ever made, so don't consider me an expert, but it seems to have worked.
You can grab some at the base and it actually peels off (similar to peeling off a bandaid -about the same resistance). I peeled off as much as I wanted, sliced it away from the colony with a knife and then super glue gelled it to a piece of rock. It was happily waving it's hands about today.
Unbelievable easy.
Carolyn]