i have a 4×4 grow tent i have my plants started in 5 gal soft pots. my auto seedlings are directly planted. im trying to maintain the humity at 80 but when i us the exhaust fan it lowers my % alot . i have a humidifier in the tent on a automatic plug in and it has a hard time keeping up. do i need to exhaust at this stage and how often does it need to be on? yhanks
If the plants are small, such as seedlings, then the air in the 4×4 doesn’t need to be changed as often as large plants that fill up the 4×4 wall-to-wall. A general recommendation is to exchange the air every 1-5 minutes. Although, some people go longer than that and still get good growth. Hope that helps
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