Hi I have a 3x3x6,8inch inline fan exhaust with fan controller,1000 dimmable light system,6inch ducting convert to 8in for heat exhaust,LG potable 8000 btu's I have to 4inch duct hoses and help from new garbage bags I tapes to funnel air thru the ducting,and I have 1 4inch inline fan helping the ac ouch air in,I have a 3 gallon big easy auto in coco,and a then jack herer auto 1 gallon in coco there both in buckets where they hit the floor.I'm using advance nutrients 3 part 1 liter of ph perfect bloom,ph perfect grow ,ph perfect micro.i have a ec/ppm meter,ph meter ph down but not up.