Drooping leaves with proper grow light.

[melver]

Hi All,

 

I need a little advice and thought someone might be able to help. I am growing 4 plants in and NFT system, they are all a foot tall and doing really well. I have a 250 Watt MH light and flourescents in my grow cupboard. Am using 1/2 strenth nutes woith H2O2 a couple of times a week.

 

When I run the 250W light after about 6 hours the leaves start to droop, no change in colour just a severe droop. I turn the 250 W off and put the fluorescents on and within a couple of hours they are back to normal.

 

The nute temp maintains at about 25C, the room temp at about 28 - 30 C. I have an extractor fan moving air around the room.

 

Any ideas or suggestions would be really helpful, I was hoping to use the 250 W all the time but am having to switch between the lights continuously.

 

M

[pipeman]

plants will need more water under a HID as opposed to fluoros. Drooping can be a sign of underwatering, although it is unusual for plants to droop and recover in such short time frames. Drooping can also be a symptom of over watering but since you say turning the HID off solves the problem I would guess overwatering is not the issue. Maybe try increasing the water flow through your channels when the lights are on.