I went wrong somewhere, they started showing issues with calcium and magnesium, I changed my rez out and gave them their first real batch of nutes. I did half strength H&G base nutes and full strength additives and I think I just over loaded them. The cal-mag issues were getting worse so I made it even worse by adding more. I decided to give AN a try and this stuff seems to be working but it's real expensive. I'm looking at getting this powdered stuff from Green Leaf called Mega Crop. 9lb bag is 100 dollars with shipping and makes 2500 gallons.
@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.
jamaljackson
