Stacking Decor

It is logical to stack you decor sort of in the middle of the tank so debris doesnt biuld up rihgt? But is it possible to stack the decor up againts the back of the tank if their are powerheads at the back of the tank?

I generally have decor all over the place, what I usually do to avoid buildup is move the water around to stir things out that might get stuck, and sometimes move the stuff to vacuum there.

But powerheads back there would help right? It would mean i would have to stir the water up all the time like you do, correct?

Powerheads push water in one direction, but suck in stuff as well, so I find they pull in as much stuff as they push out. I have a large powerhead in the middle of the live rock in Shakespeare's tank to keep water circulating through the rock as much as possible, and it has a large micron filter attackment on the intake. I builds up some crazy junk that I need to wash out every two weeks. Maybe putting a powerhead in the corner pushing water across the back would work to keep the buildup there minimal.

Thats what i wanted to know. Thanks.