COBs, Blumats, Mega Crop, and Mephisto

All are doing well and should be on time for topping @4th node by day 18-20. Using VPD chart. Keeping plants within VPD parameters should result in some healthy monster growth. Have added a humidity controller to maintain rh. Controller is set @75%, which means humidity is effectively maintained @70-75%. (73 avg) Currently, air temp is 80°. Allowing for a 4° difference for leaf temp in calculations, VPD should be steady @8.4 with these settings. Edit: Rh drifts past the shutoff point so will consider set point to be avg rh. Set controller to 73. Picked up a cheap lux meter. Sprouts were @9k lux. Lowered lights to 22-24". All @14,000 lux.