RE: fragging hydnopora???
Hydnophora....LOL.... Throw it on the ground as hard as you can, then glue all the little frags to rocks and watch out! Really though, they are tough little corals. I use needle nosed pliers and break off the branches you want, put a generous glob of superglue gel on a rock and press each frag onto it. Let it sit for a few minutes to set-up and place it on front of a powerhead to rinse it off. Then you can move each frag to a spot in your tank that you desire. The other way is take fishing line and tie it to a rock.
Tim Marvin
(512) 336-7258