ok. This has hapend very quickly. over a two day span, it went from barely noticable light green and gray spots, to this. Its a DWC in a 5 gal bucket using botinicare pure blend pro grow 3-2-4 nutrients, 85 watt 6500k 8500 lumen cfl about 4 inches from the plant, temp is about 75 to 80f. with the fan, water temp seems to be nice and cool, cahnged the res about 3 days ago. No one seems to have a clue as to what it is. Any help will be great