Ok so I am going to try and get my DIY rock going in the next month. I really want to do a wall of sort and came up with this basic design. It will be roughly 10" tall or roughly half the way up the back of the tank. and was thinking about 30-36 inches long so it will not be the entire width of my 48" tank. The ovals will be shelf's to attach corals to, figuring about 2" out from the wall. The squares will ...