OK, let's try to bring a little sense to this thread. I don't want to tell Alan he is wrong, especially after the nice zoos he left me. However, Alan in this case you are not quite right. And Evan your description probably is correct in most cases. However, in the case of my Colt on which you tried that trick, it did not work. The elastic cut through the frag, and it became two free floating frags. So far I have managed to get one piece to attach by trapping it in a small tupperware container surrounded by rubble. I am still waiting for another piece to anchor.
The Colt I sold Doug is quite different. It is what they call White Colt. It is an encrusting, low growing coral. The way I fragged it was by chopping up the rock it came in on into a number of pieces. That coral spreads from the base. So if you place it next to another rock, it will grow onto that rock, and you can easily divide it by cutting, and both will be attached. Alternatively you can attach the small piece of rock the coral arrived on onto a bigger rock using epoxy or Krazy Glue. Then when it has spread, you can chop up the rock like I did.
