I have a 90 gallon tank, and for lighting, I'll be using a 400W MH, and 2 110W VHO's. The tank I have has a brace made out of black plastic, right in the middle of it, for extra support. Since the MH will be placed in the middle, it'll creat a shodow. Do you see a problem with getting rid of the black plastic, and replacing it with a piece of Plexiglass? ?