Originally Posted by Tympst
Cool. thanks for the article and the moss/ spiderwire idea.
Has anyone on here made their own 3d rock wall/ background before?
Yes! Love the 3D rock wall look. It's messy, but the final product is worth it. Use expanding spray foam (found in most any hardware store). Be sure to tape off any area that is not wall. I put down a layer of black silicone first. The spray foam looks ugly through the sides of the tank. Lay the tank on its side and lay out your rocks/driftwood in what ever landscape you want, then spray around them with the foam. Try not to get any on the surface you want showing. When it dries, you can carve away any any excess very easily and shape it a lil if desired. Now the messy part. You'll want rubber gloves and maybe old clothes. Use black or brown silicone to cover any foam that is showing. Work quickly. You don't want it to dry. Once it's covered, pile on sand or peat. I use peat because it looks more like dirt between the rocks and java moss will grow on it. Mash it into the wet silicone. You may have to work it into small grooves. Then you just let it dry over night and dump out the sand/peat that didn't stick. Viola!
Hope that helps. I just used this method to build a waterfall in my vivarium. I will post a thread if I can find the pictures.