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Ventilation for a grow tent?

Frank.O

New member
Hi, I am currently planning to grow Critical Mass SoG in my 240x120x200 cm grow tent. Critical Mass is very likely to get mould if the environment has too much humidity, it has huge buds that are quite dense... So I need to know how strong ventilation will I need. I´m gonna use LED lights so there will be probably less evaporation and humidity because of less heat generated by the lights. Also I will use vents directed at the plants so that should help too.

I´m hoping a ventilator with 300m3/hour will be enough, the tent has 5,76m3 so it would be exchanging roughly every minute. Thx for any advice, i´ll really appreciate it :)
 

Frank.O

New member
Thank you for the advices :)

That should be sufficient...

I try to shoot for 3 exchanges per minute myself.

Still your 3 exchanges per minute compared to my only 1 is a hell of a big difference, are you sure its gonna be ok?
 

yortbogey

To Have More ... Desire Less
Veteran
i stay simple w/ my thinking.... what ever size ..exhaust u got.... means U need
2 of the same size for intake.....works everytime
 

supermanlives

Active member
Veteran
get bigass fans and speed controller. then you can adjust at will. I run 2 fans in my tent both on same speed controller. passive intake sucks LOL
 
Agreed, one change per minute worked best for me in a 2x4x6 cab. I had over 600w of T5 and LEDs going (330 real watts of LEDs) and temps stayed under 80 lights on.
 
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