3 weeks into flower,
water with nutes every 3-4 days till coco is slightyly dry,
ph 5.9-6.4,
under 2 600w hps,
toom temp wen lights on is 84 but has been cold for the last few nights wen lights off,drops to high 50's,ive moved a heater in that keeps it about 60f.
does it look like stress from...