The humidity in my tent is about 65%, fluctuating betwwen 60% to a max of 71%. Is this high humidity a problem? What can i do to keep those levels down without a deshumidifier?
(1x250Watt CFL inside a closet with a oscialting fan)
You need a intake fan. They're pricey but it will blow the air out of your tent. With a vent or two open it will pull air in through them as it blows out the humid air. Defoliation techniques will also cut down on humidity and open air flow.
Otherwise you would need a dehumidifier. I've heard of people using things that suck moisture out of the air. Something like those packets that go in bags of beef jerky but on a larger scale.... or like a giant boveda pack. Sounds expensive.
Hi 60 to 70% is fine but make sure that you have at least 2 monkey fans inside to circulate the air to avoid mold. Also make sure that night temp doesn’t go below 18 degree C. What you can also do is turn on the house humidifier in the room where the grow room tent is instead of placing it inside, it’s much more effective in my opinion