This is my 3rd grow and encountering problems I have not ever had before. Growing in tent, Strain Trainwreck Feminized, OF soil, 5 gallon fiber pots, FF trio nutes, 600 watt (adjustable 50%-100%) on 100%, MH and HPS. Tap water allowed to sit at least 24 hrs, pH varies 6.4-6.7. 6" vent ducting...