I have been growing 2 plants SCROG style, they are about 4 weeks into flowering and the fan leaves in the center of the screen are yellowing. I assume it is sun bleaching, they are relatively close to the glass of my reflector but not burning. I can't really raise my light up any more and there is really no way to rotate my plants out of the center as they are all entwined in the screen. Is it a big deal or could I leave it? the bud sites within the yellowing fan leaves seem to be ok, but its just the fan leaves. I have no signs of yellowing or any other deficiencies any where else on the plants. At first I was thinking a deficiency but I don't think it is. Any ideas?