Temp and humidity levels

Drumking15

Active Member
Setting up my controller and was looking for some input. Knew I saw a chart one time with different temps and humidity ranges for various levels of growth.

My setup pulls air from a lung room that's 60-70 deg and 50%rh. I have a small dehumidifier in the grow room also and can run ventilation and Rh separate.

I'm thinking veg
Day temps 70-80 night 65-75
Rh 50-60

Flower
65-75 night 65-75
Rh 40-50

I have a deadband selection of 2,4,or 6 on the temps. I'm leaning towards the 4 as I'm afraid that when the lung room is around 60 that cold air coming into the room will be a shock to the plants as I want it to be a gradual cooling. Or should I go with 2 and let it cycle a bunch.
 
I have mine during flowering right now at 75-80 day and 60-65 night with 45-55 rh humidity but I'm growing almost pure indicas. You want colder temps at night and rule of thumb is no more than a 15 degree gap between night and day temps.
 
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