1. 

   andrew256 Registered User

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   #1 andrew256, Jun 8, 2009

   I visited a grow room the other day and the temp was 81F at canopy level. Too hot?
   

    

2. 

   toastybiz keep it green

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   #2 toastybiz, Jun 8, 2009

   Nope, under 85F is fine. Above that and the plants have difficulty uptaking CO2, which is why you use CO2 enhancement if you have to run high temps.

    

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