when u buy frags wat the proper way to place them in a tank. The following are examples of what I have done..
a) I bought a few mushroom and I just plased it on the rocks one attached itself to the rock and growing but the other two fell off and disappeared.
B) I bought a few frags from the last frag show and they was mounted on a ceramic platform. I placed one on the sand and the other deattached itself and I stuck it into the rock and placed a few pebbles to hold it in placed.