i think i'm going to use more styroform to make my rocks. Just found a guy in my cities fish club who is going to drill my tank for me, so as soon as he is available to do it will be getting that done so i can then set the FB in place so I can cut the background to its final length and get started.
One problem I'm having atm is finding some safe silicon to use. People are saying don't use anything that is for bathrooms, kitches, etc. Home Depot has GE Silicon I and II and DAP brand stuff but i'm not sure if its safe to use or not, the label doesn't really give much information about any stuff that's in it that could be an issue