Big Green Thumb
Well-Known Member
Here are the specifics:
Strain is Copper Chem from GPS
Day 21 of flower
Growing in pure perlite in a 5 gallon hempy bucket.
Temps vary between 70 - 84
Using Jacks 3-2-1
PH 5.8 - 6.2
Watering with RO water/nutes every watering @ 1000-1050 ppm
No additional carbon dioxide
Plant looked perfect in veg tent under led strips
Had similar issues last grow as well. Last grow was in coco/perlite using Blumat auto watering system.
Flowering light system is DIY led strips 4,000k with 640 watts overhead and about 200 side lighting in a 5'x5' tent. I just turned lights down to 450 watts overhead and 100 watts side, thinking I am just overdoing it with the amount of light.
The problem starts at bottom of plant - yellowing/spotting on leaves that eventually die. The problem continues up the plant.
On the pic of the whole plant, disregard the white/burn spots on upper leaves - those are from the plant growing into the light so the leds bleached those spots. Upper part of plant is pretty healthy.
Strain is Copper Chem from GPS
Day 21 of flower
Growing in pure perlite in a 5 gallon hempy bucket.
Temps vary between 70 - 84
Using Jacks 3-2-1
PH 5.8 - 6.2
Watering with RO water/nutes every watering @ 1000-1050 ppm
No additional carbon dioxide
Plant looked perfect in veg tent under led strips
Had similar issues last grow as well. Last grow was in coco/perlite using Blumat auto watering system.
Flowering light system is DIY led strips 4,000k with 640 watts overhead and about 200 side lighting in a 5'x5' tent. I just turned lights down to 450 watts overhead and 100 watts side, thinking I am just overdoing it with the amount of light.
The problem starts at bottom of plant - yellowing/spotting on leaves that eventually die. The problem continues up the plant.
On the pic of the whole plant, disregard the white/burn spots on upper leaves - those are from the plant growing into the light so the leds bleached those spots. Upper part of plant is pretty healthy.
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