Hi, this is what I have, 2 x 12" inline fans, 1 Max Fan, 1 Vortex, 1 x 8" Typhoon inline fan, and a 4" no name inline fan, 6 x 1000 Watt MH/HPS Rebel open box coil and core ballasts with 6 x 1000 Watt HPS Eye Hortilux bulbs, 6 x 6" Cooltube air-cooled reflectors the glass ones 1 x 1000 Watt MH Supernova closed box coil and core 1 x light mover, 1 x Hydrofarm non air cooled reflector 3 x 1000 Watt Philips MH bulbs, 1 x Danby 12,000 BTU portable A/C, 1 x small ass fan, 1 x small oscillating fan, 1 x 24" fan, 1 x Odor X 12" Carbon filter 1700 cfm, 500ft of zebra plastic 600lbs of BX ProMIX a 200L barrel and some nutes. There are 3 rooms 1 vegetation, 1 flower and storage. Storage = 600lbs BX ProMIX, 200L barrel, water pump, watering wand, hose, and nutes. Flowering room = 18ft x 10ft x 8ft there are 6 1000 Watt HPS lights, 6 Cooltube air-cooled reflectors the glass ones, 6 HPS bulbs, they each cover their own 4ft x 4ft area, 12" Odor X carbon filter, 12" Max fan on the filter exiting the chimney, 1 small oscillating fan beside my Danby 12,000 BTU A/C and 113 G-13 Flowering with powdery mildew... Vegetative room = 8ft x 6ft x 8ft there I have 1 1000 Watt MH light with a Hydrofarm reflector and a light mover that covers the 8 feet and 40 plants vegetating with powdery mildew... After reading what could be the cause of all this mildew I found out that lack of air, heat and crowding could be the cause well I hit the tri-fecta because I have crowded its 80 degrees there and only have limited fans and 0 funds left. If anyone can give me some helpful tips it would be much appreciated. (I havent set up the ducting for the lights because I am missing the reducer to fit the tubes I do have 12 ducting)