I also just ordered a humidifier. Otherwise I have to keep most of the tent air flaps closed, exhaust fan off, and the mammoth mint 8 led at 30% to maintain like a 48% rh. But that leads my tent to b at 80Ā° and water temps at 75Ā° My lungroom(bedroom) is like 10% rh. I'd like to b able to turn on my exhaust, open up more air flaps, and turn my light up w out the RH dropping to like 10% and my heat going up probably 10Ā° or more. Grow some weed I thought, shouldn't be all that hard lol. I'll get this shit dialed in at some point!