i just bought several corals from a friend and I got a great deal on a huge toadstool (8" in diameter), anyhow I cannot seem to get him placed where he doesn't fall over. I was told to wedge him between rocks, use rubberbands or even pin him, what should I do- jabbing a hole in him doesn't seem nice, he is presently just laying on the floor of my tank until I find a better solution. thanks in advance for any insight. tommy