rH and Mold - Timing ??

onionslinger

Well-Known Member
Hey folks
I know high constant rH = bad.

In my current grow arrangement i can not add a dehumidifier without sacrificing cooling until I can upgrade my power supply.

When im lights on im running an avg rH range between 55-65 and Im happy with that. But at lights off when the plants are transpiring im pushing high 70s to low 80s in my tent. I run my extraction fan all the time.

Currently Im running a 10/2 10/2 on/off light sched for a few autos in flower. Daily I check the plants and so far no probs with mold.

However, when I go back to photos and they are sitting at those humidity levels for 12 hours at a time I figure I might run into mold issues as opposed to just a couple hours like now.

Is there a threshhold in time before mold can take hold and become a true problem.. a few hours, a day, a week with a constant 75-85 rH range???
 
After a two sec check on conditions for mold growth it appears the answer is obvious.

Mods, feel free to deep six this post..
 
Lots of air blowing on them and I've.never had a problem. Some days my garage is 99%!

Thanks for the replies.

Air flow shouldnt be issue in my tent. But 99% huh.. for how long of a stretch?

It just looks like "wet" conditions need to apply for a good 24 hours before it becomes a real problem so looks like im safe..
 
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