I’m about to start a grow with some Chemdaug plants. I understand Chemdaug is susceptible to mildew and mold. I live in the high desert with low humidity have a 4x4 tent – use 4 600w leds – have exhaust fan and regular fan in tent. I also have a humidifier in the tent as the humidity in the house is usually 30s or lower. However, I fought powdery mildew on my last grow and don’t want to go there again. I think last time I adjusted my regular fan up too high for just a week and that was all it took. I have read about having one fan high and another on the other side of the tent low to cause more circulation. Any other tips? Will nematodes help prevent PM?