I am using Fox Farm trio and water solubles at 1/2 strength, also using great white monthly, CaMg and ArmorSi biweekly, and Mykos for transplants...Always pH my h2o somewhere between 6 and 6 1/2...temps are 76-79 lights and 56-60 dark...humidity is around 35-45% (much higher during snow)...T5...