If it's to hot for your hand at the top of the canopy then it's to hot for your plants. 75ºF is the optimal tempature for cannabis. If you use CO2 then your plants can endure tempatures up to 90ºF for short durations of time if your CO2 is dispersed at 1500 ppm. Hope this was of help to you.
Trichome Creator Reviewed by Trichome Creator on . quick question? How far/close should my400 hps light be to the tops of me plants ? any help welcome thnx. :) Rating: 5