Industrial Plant CBD & Purple Bud Auto

IMO it seems like over-watering. Also, 84 F is pretty warm. At this temp you should have a higher humidity, around 65 to 75% - https://i.imgur.com/L7jOoRH.gif And the difference vs. the night is huge at 21 F. Such a big difference isn't healthy. I guess you are keeping the plants warm by leaving the light on 24Hrs? Although there are a lot of conflicts to ideal lighting schedules, I personally think the plants should be given some rest. "It has been suggested that, when subjected to a regimen of constant light without a dark period, cannabis begins to show signs of decreased photosynthetic response, lack of vigor, and an overall decrease in vascular development." https://en.wikipedia.org/wiki/Cannabis_cultivation Consider instead to allow a dark period and get a heater to keep the plants warm during that time: http://www.ebay.co.uk/bhp/tubular-heater-thermostat But then I'm also not an experienced grower, just been reading a lot. So take what I say with a grain of salt if you wish 😁