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[c-squared]

Long time listener, first time caller, first time indoor grower in a 4×2 tent. Currently on first week of flower and battling keeping the humidity down after last feeding. Lung room is my living area with a mini split unit that’s pretty good with taking the humidity out of the air. Usually the vent fan keeps the humidity in check in the tent but now I’m having to crank it up higher to keep up which we all know causes the tent to want to suck it’s self into the blower (go figure) when the vents are closed. Anyway my question is can I leave the bottom vents open over night? Always heard never let any light in when the grow lights are off. One vent is facing a wall in a dark spot but the other vent could possibly see some light. Played with a small dehumidifier earlier and honestly the vent fan was doing a better job but I’m in a pickle at night when the vents are closed. Is this a deal where I need to just water/feed a little at a time and try to keep the soil dryer instead of full feed/water twice a week like I usually do?

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Discussion

[SlamFM]

I’ve done something similar except I didn’t worry about light leaks since I only do photos outdoors. It works if you’re not worried about smell.

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[c-squared]

Thanks for all the replies. Plenty of tips, tricks and good ideas to reference here, and one confused old dude. You guys are the best

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[rnjohnson214]

Are you venting out of the lung room? When I started doing that it was a game changer

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[c-squared]

Venting out the house/garage. Have 6 inch blower and ducting run up the ceiling to a vent on the side of the garage so fresh air sucked in from the lung room and humid warm air blown out the side of the garage. Seems like the humidity gets back under control about two days after watering.

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[rnjohnson214]

Also Remember, cold air cannot hold as much water vapor as hot air so as the air cools relative humidity is going to rise

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