Hey to all, I'm in the process of setting up a theme to go with my vivarium as well as my other cool critters. I wanted to create a rock / boulder wall effect. Not in any of my tanks just on the walls around them. I know I cound go to home depot or some place and get something but, just like my tanks the fun is making it. I tried great stuff but can't get any thing to stick to it? I saw a post were a guy used white craft foam, hot glued it the way he liked then covered it with something I just can't fine the post. Any help would be great

Thanks in advance Jeff