ahoy
New Member
Hi guys,
Ill do my best to describe the problem and the things Ive done to try and solve it by dates.
starting point: flower week 4 (13/3/17)
first grow - 2 plants of White widow.
grow with coco in 11 liter (3 gallon) fabric pot
250W HPS
watering 2 liter (0.5 gallon) every day, getting 20%-40% runoff.
PH 5.8-6
temp 20-29 C (68-84 F)
Nutes - Dutch pro
A , 3.5/liter NPK – 5-2-6 (Max recommended by DP chart)
B , 3.5/liter. NPK – 5-2-6 (Max recommended by DP chart)
Expload 0.5/liter NPK – 0.2-0.2-4
Multi total - every 2 weeks, 1/liter NPK – 0.2-0.1-0.1
Advance nutrients Cal- Mag 1/liter NPK – 4-0-0
still week 4 (18/3/17), problem starts with the left plant on a few top leaves. thinking its a Phosphorus deficiency I change a few things:
giving water only every 3 days
raise A+B to 4/liter
raise explode to 1/liter
raise Cal-mag to 2/liter
runoff start getting to 50%-60% (still giving the same amount of water)
runoff PH 6.3
week 5 flower (20/3/17), problem consist and spreading to other top leaves. Im cutting the damaged part of the leaves
week 5. (23/3/17) - the problem keep spreading. I give 32 liter of water to each of them to flush salt build up.
starting today Ive raised explode to 1.5/liter - more than what DP chart recommend.
Ive cut some more damaged parts
pics from today:
No idea what caused it.
Any help will be very appreciated
Ill do my best to describe the problem and the things Ive done to try and solve it by dates.
starting point: flower week 4 (13/3/17)
first grow - 2 plants of White widow.
grow with coco in 11 liter (3 gallon) fabric pot
250W HPS
watering 2 liter (0.5 gallon) every day, getting 20%-40% runoff.
PH 5.8-6
temp 20-29 C (68-84 F)
Nutes - Dutch pro
A , 3.5/liter NPK – 5-2-6 (Max recommended by DP chart)
B , 3.5/liter. NPK – 5-2-6 (Max recommended by DP chart)
Expload 0.5/liter NPK – 0.2-0.2-4
Multi total - every 2 weeks, 1/liter NPK – 0.2-0.1-0.1
Advance nutrients Cal- Mag 1/liter NPK – 4-0-0


still week 4 (18/3/17), problem starts with the left plant on a few top leaves. thinking its a Phosphorus deficiency I change a few things:
giving water only every 3 days
raise A+B to 4/liter
raise explode to 1/liter
raise Cal-mag to 2/liter
runoff start getting to 50%-60% (still giving the same amount of water)
runoff PH 6.3



week 5 flower (20/3/17), problem consist and spreading to other top leaves. Im cutting the damaged part of the leaves


week 5. (23/3/17) - the problem keep spreading. I give 32 liter of water to each of them to flush salt build up.
starting today Ive raised explode to 1.5/liter - more than what DP chart recommend.
Ive cut some more damaged parts
pics from today:


No idea what caused it.
Any help will be very appreciated