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If a grow room temperature was 100F degrees at the very top where the light is strongest, but only 80F degrees near the base of the plants, would this cause any growth problems? Thanks.

Hi guys, I need some more help with my box temp, room size: 5x2.5x1.5 ft fan: 4" 160m3/hr light: 250w mh distance from thermometer/plants 12-18" pasive intake: two 3x10" inch holes Temp>92 degrees Do i simply need a faster/bigger fan? or maybe a light tube with ventilation Any...

Hi guys, quick question, What size/speed fan should a 5 x 2.5 x 1.5 room need? I currently have a 4" 160m3/hr fan, and I'm having some troubles. Is this a suitable fan size?

Hi guys, I've managed to get my passive intake and fan operating at a decent level, but as soon as i connect my carbon filter the efficiency of the fan drops loads, why is this? is this just natural, because the air has to be drawn through it? the filter is not directly in contact with the...

What happens if light goes into my grow room during the 6 hour night period?

resolved, thanks

solved, thanks

solved, thanks