Fragging Hammer coral

[Der_Iron_Chef]

Looks like a wall hammer to me. Very pretty!

I got this from wetwebmedia:

"His method is to stretch a rubber band around the coral crossing the polyps where he wants to make the cut. In a week or so, the polyps will recede from this point leaving open skeleton for you to make the cut without fear of damaging the polyps and risking infection."

Then he goes on to suggest you could cut through the calcerous skeleton using a dremel.