Thanks for the replies guys! But I'm not talking about the viewable ledge. The wife had that figured out way before I even got close,lol. I am more concerned about the inside wall where the tank touches the wall. Like Sandyland said, "push it up against the drywall".
Everything is FRP in my fish room including the "window" where the tank goes. Should I just set the tank up against the FRP? No cushion between the two?
Also, my steal stand has bolts for adjustments. I have put felt pads(1/16") on the keep from scratching up the tile. Does anyone see a problem there?