Some questions about environment

[fwesH]

I have a very small closet grow going on and I'm finding it hard to track down info on lighting and ventilation for small operations.

How important is airflow for a couple of plants? I've read everything from, 24 - hour airflow is crucial to "opening the closet a couple times a day will provide enough good air for a couple of plants."

Also, should there be any difference in airflow between lights on / off? Can I turn the fans off when the lights go off?

And lighting - how important is absolute darkness during the dark period?

Thanks guys, please try and help me out.

 

[Bud stankalot]

Airflow is very important. I'd exchange the air several times in the room per minute for optimal results. As far as your light question, it is absolutely essential to have zero light on the plants during the dark cycle.

 

[fwesH]

Thanks Bud, great answers. What about airflow during the dark cycle?

 

[Bud stankalot]

Sorry I missed that one. If you have high temps at night then keep running the fans. I turn off my main fans that run air over the lights when they go off, but keep my oscillating fans blowing on the plants. The main thing is to try to keep your temperature consistent during the on and off cycle.

Happy Growing!!

 

[Hogdady]

The main thing is to try to keep your temperature consistent during the on and off cycle.

I've read a couple of studies that showed that 18° difference between night and day is the optimal spread......

 

[Bud stankalot]

I've read a couple of studies that showed that 18° difference between night and day is the optimal spread......

I can guarantee you know better than I do. I've read before to keep temps close during on and off. I'm not much of an indoor gardener so I'll defer to Hog.
(actually, I'm not much of a gardener period. Lol.)

 

[Hogdady]

I can guarantee you know better than I do. I've read before to keep temps close during on and off. I'm not much of an indoor gardener so I'll defer to Hog.
(actually, I'm not much of a gardener period. Lol.)

Didn't mean to step on your post Bud. I've read a bunch 'bout temp swings and these studies claimed that the 18° difference made huge differences in their results....

 

[Bud stankalot]

Didn't mean to step on your post Bud. I've read a bunch 'bout temp swings and these studies claimed that the 18° difference made huge differences in their results....

No worries, brotha. I've seen what you do with the indoor ladies so my pride is still intact. Now I'm shooting for an 18 degree spread.

 

[Bandit420]

I noticed a significant difference in the yields of my plants when I finally got the temps to drop during the lights off period.
Before ac my room was constantly at 79-85. Now with ac the room is at 83 with lights on and a chilly 68 at lights off and the buds are coming out much fatter and stinkier.
I too cut off air for the lights but i keep the small air circulation fans going 24/7