This image shows how the various equipment is arranged behind the concrete background. The light hood has been pulled toward the front of the tank to reveal the Emperor in the foreground, the Aqua Clear in the background, and in between the area with the powerhead and heater. You can also see the IceCap VHO ballast mounted on the back of the hood. As you may have noticed, I don't bother much with cleaning algae behind the styrofoam. (4/2005)