Air circulation during dark phase

[JimG]

Does the amount of air circulation in a grow closet change after the lights go out and the stomata close up?

[Rwise]

The fan should not be affected be the lights.

[JimG]

Let me expand upon that a little. During light phase I have 2 intake fans, one bringing in air from below the plants and one at the canopy. One exhaust fan with carbon filter attached set on high. Also running, are an dehumidifier exhausting outside the room and an air conditioner at the top of the room that cools when needed. All of these keep my humidity at 50% to 52.5% and my temp between 75-77 degrees. During dark phase I turn off the canopy fan and lower the exhaust fan setting. Dark phase temps are set to run at 71-73 degrees. The humidity is maintained at 50%. Question: does turning off the canopy fan during dark phase affect plant growth processes. Should it stay on for overall plant health?

[dilvish]

You asked this in another thread... why are you asking again?

[PRIMO]

The wind blows at night also. I've always thought the constant movement and resistance would help strengthen the plant.

[billyboy]

Always run fans. The tops must always be dancing.