Finger Leather Frag:

[Richer]

If your leather doesn't get blown out of the hole, it should attach in a matter of a few days. You could also try putting the coral in a small container with rubble in it in a low flow area of your tank.

I had problems getting a colt coral to attach, I ended up sewing it to the rock with some thread. I've since removed the thread, and its doing just fine.

-Rich