Some people use zip-ties to stabalize the rock, some don't. I figured that rocks in the ocean are zip-tied, why should I do that to mine? I just balanced mine out, and it seemes to be working ok, but then again, it has only been in there for 24hours. (If you want, go to www.photobucket.com
and search mrtits. I have a folder with a few pictures there.
But here is the key thing, I'm a :censor: NEWB