Things are really frosting up and buds are starting to stack and it's starting to give off an amazing smell. Added bud explosion this week and I burned some of the leaves, and it's causing the PH to fluctuate too much. I'm going to go with straight up mega crop no additives and see how they do. Ignore the nutrient calculations, it's kinda hard to figure out with mega crop being dry. I just shoot for a PPM range. I'm going 750ppm straight mega crop this time.
@CRiSPrGrow, I bought all the parts my self and set it up using an open source python script that a guy on reddit made. I've made a few changes and improvements. It uses an sht31-d temp and humidity sensor and wemo smart switches to control the fan heater and humidifier. It logs temperature humidity and vapor pressure deficit and turns the switches on and off to keep it within your set thredholds. All values are sent to a grafana dashboard that graphs the values and provides averages, etc. I haven't got around to it yet but I have an arduino and a ph probe that I want go use to send ph values to the grafana dash.