ok. forget the "you can't go higher than, is it 2/3's?" mentality if your goal is to hide equipment.
I get the "don't go to high" if your doing acros, but since you, nor I are we can ignore that.
my scape breaks the surface in the left rear corner and almost does on the right hand side.
it hides two gyres mounted vertical in each rear corner, a 30" heater, the return line, and the side wall overflow.
so if you go high and come down at an angle towards the bottom, and at an angle from the rear corner towards the center of the front, instead of going long from right to left for half of the scape.
go high along the opposite side wall and then "L" along the back, angling the back rock from high to low towards the center.
should hide most everything, unless you have a center over flow.
or not.
