Outlier Sea

VPD: VPD was 1.3 - 1.5 with 1.4 kPa avg Tried to keep temps above 20 C but below 26 C Heater worked in raising VPD. Very happy. Light: 530 PPFD / 38.2 DLI Watering: I ran an experiment since this plant is all done and I'm waiting for a bit. I measured pH runoff. I gave this plant unaerated 6.3 water for 2 days, first saw decrease in pH then increased in pH. Next I tried unaerated un-pH modified water and that had no effect, if not increasing it. Then I have given it 5.0-5.3 water for the past 3 days and the pH went down, then it went back up. I'm at a lost so I'm going to go back to giving it aerated 6.5 water. Nutes/Treatment: giving OAC CalMag 0-0-0 from TPS once every 4 waterings from now on. I have to figure out an aerating system to brew composte tea at the same time as the water. Other: Buddy said yellowing of leaves could be copper deficiency. IDK how to fix that and honestly at that point I was focused on other things. Buds got super fat imo i could be tripping