Ok guys I have been smoking for about 6 years now and since moving up to college the prices have just about tripled from back home. after wasting a lot of money I have decided to try growing my own. I managed to get eight 400W Metal Halide grow lights from the local community college FREE! (they were throwing them away!!) Heres my setup:

2x 400W MH lights
7x3.5 ft room
2 cooling fans, 1 exhaust
cool mist humidifier

the temps are ranging 62-69 night to 73-84 day
humidity is about 30%
18/6 lighting for now

I got 6 plants from a friend with a crowded room and they are about 1-2 months in, I'm not quite sure.We transplanted them from small pots to 3 gallon buckets/pots, and mixed organic soil bought from the nursery with some perlite for the dirt. 3 of the plants a runts and have bad yellowing leaves, anybody know what causes this?
I'll be testing the pH and NPK levels in a day or two and that might give some insight on the problem.
Does anybody have any advice/tips/secrets that I should know about before its too late? any help is much appreciated
Thanks
0mn1v3il Reviewed by 0mn1v3il on . My first grow - advice please and pics Ok guys I have been smoking for about 6 years now and since moving up to college the prices have just about tripled from back home. after wasting a lot of money I have decided to try growing my own. I managed to get eight 400W Metal Halide grow lights from the local community college FREE!:D:D (they were throwing them away!!) Heres my setup: 2x 400W MH lights 7x3.5 ft room 2 cooling fans, 1 exhaust cool mist humidifier the temps are ranging 62-69 night to 73-84 day humidity is about Rating: 5