I'm adding some additional rock to my nano reef and securing the rock that is already in my tank. I have a large bottle of the original gorilla glue leftover from a reptile enclosure build and I was wondering if it is safe for securing the rocks. Is this glue reef safe, and is it effective enough to prevent rocks from falling down constantly? Does anyone have other cost effective suggestions for securing rocks together (whether the gorilla glue will work or not)? I'm quite bad at securing stuff with epoxy so that really isn't an option and I'm trying to keep costs down so I don't run my budget into the ground before I even purchase fish and coral.