so I introduced a fan, not that high speed I don't think pic is from around 9am around 3 they started show signs of light beaching (I took the glass out before xmas and introduced the new fan yesterday.) Why would the fan cause this light bleaching? the plants aren't any closer than they were on xmas. I'm not one to let a problem ferment, I noticed the bleaching worsen on 2 (test) leaves over a course of 90 mintes, I did what I could to raise the light/move it a few inches to the right, I also put the glass back into the HPS enclosure. Will post a pic for you tomorrow.