I thightly packed my rocks. It may look like a wall effect, but I have numerous outcroppings to place several corals. I just added a small Xenia colony yesterday to the top left
I can get at the side with a Mag Float. I dont worry about the back. I have 2 Turbo's and about 20 Astrea's along woth two Sand Sifting Starfish and a Lawnmower Blenny.