Dgosho,If you look at a photo of the rear setup, you'll notice that the entire light hood is on a rail system. The light hood can be pushed from one side to the other with ease. You'll also see that there is a platform on the right side of the tank that is 4 foot square that I can get up to with an eight foot ladder. When I'm up there, it's no different than if the tank were on the floor (ie. really easy to bend over the tank and access everything). The other side of the tank also has a platform, but not as wide ( maybe a foot );but, it's plenty wide enough for access (especially with my ladder next to it ). It's the rail system that really makes the system work.Being able to push aside the entire hood, a foot or the entire 6 feet, makes this more accessible than just about any tank I've seen. Steve