vancitychopshop
Member
Hi guys.
Currently growing in a hydroponic fill and drain bucket system.
Was vegging under 1000w MH, plants were vigorous and healthy. growing fast and green.
using Lucas Formula with GH nutes for feeding. have had several successful grows using this system.
Put the plants into flowering and turned on our new HPS lights. 4x1000w. The plants are 2 feet away from the light. After a day, the new growth on the plants is coming out yellow and plant growth is slowing down. The tips of the leaves are turned down as if they are protecting themselves.
My ppms are 940. (ive done full grows using this formula with no problems in past) and the PH is 5.6-6.0
I have been told by other growers repeatedly that "you can't give your plants too much light"
Temperature is not the problem, air temp right by the top leaves is a cool 24c and there is lots of airflow in the area.
I feel like i am doing everything right and cannot figure out what the problem is.
Are the lumens too intense? (4 x 1000w in cool-tubes 2ft from the plants)?
Please help!
PICS (THIS happened in ONE day. please help!)
again:
C02 = 1200ppm
PH 5.7
Nutes: 940ppms
Temp 24c
Airflow : check
plants 2ft tall.
lights: 4x1000k
Height above plants: 2ft
Currently growing in a hydroponic fill and drain bucket system.
Was vegging under 1000w MH, plants were vigorous and healthy. growing fast and green.
using Lucas Formula with GH nutes for feeding. have had several successful grows using this system.
Put the plants into flowering and turned on our new HPS lights. 4x1000w. The plants are 2 feet away from the light. After a day, the new growth on the plants is coming out yellow and plant growth is slowing down. The tips of the leaves are turned down as if they are protecting themselves.
My ppms are 940. (ive done full grows using this formula with no problems in past) and the PH is 5.6-6.0
I have been told by other growers repeatedly that "you can't give your plants too much light"
Temperature is not the problem, air temp right by the top leaves is a cool 24c and there is lots of airflow in the area.
I feel like i am doing everything right and cannot figure out what the problem is.
Are the lumens too intense? (4 x 1000w in cool-tubes 2ft from the plants)?
Please help!
PICS (THIS happened in ONE day. please help!)
again:
C02 = 1200ppm
PH 5.7
Nutes: 940ppms
Temp 24c
Airflow : check
plants 2ft tall.
lights: 4x1000k
Height above plants: 2ft