How to keep humidity up in 5x5x7

I’m bringing air in my 5x5 and I’m also pulling out the air but I can’t keep my humidity at 75% any help?

Don't bring air in. Let air come in passively. A small humidifier will help. Monitor with a hygrometer to dial it in with your fans.

I have a humidifier in there I was just trying to bring in fresh air for them so it’s not hot and stale air I get the humidity up to 75% when I’m not bringing air in or out of that makes sense lol

Antc420 said:

I have a humidifier in there I was just trying to bring in fresh air for them so it’s not hot and stale air I get the humidity up to 75% when I’m not bringing air in or out of that makes sense lol

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Air exchange can be accomplished with just the extraction fan on. Air will pull in from the vents, at the same time air is taken out. No worries.

If you are concerned about the air content add CO2. It is actually a very cheap input (after the initial set up that is) and there are many studies recently that say it can increase yield as much as 30% even when not pushing temps and light levels.

What is the easiest way of adding co2 to my 5x5x7 grow tent I want to do everything right

Antc420 said:

What is the easiest way of adding co2 to my 5x5x7 grow tent I want to do everything right

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Either a controller and a regulator and a tank or a co2 generator powered by propane. Imo tank is easier because with the propane then you have to worry about more heat and if something goes wrong it's an explosive gas where as a co2 tank is a lot less risk in that area. Just search co2 meter and regulator on Amazon and you will find exactly what you need.then find a local gas place that caters to welders they will have a tank and re fills