Humidity Levels


Im new to all this but what should the humidity levels be in the grobo for the seedling stage? Im growing Northern Lights Fem Reg.
Day 14.


Hey @Andyrmt

These numbers below should be fine. Certain times of the year in certain areas you can’t always obtain them.



Thanks @Azuri , Mine is in the grobo, day 14 small Seedling with 4 leaves, the lower fan is on and Grobo is reading 35% on my humidity gauge. 78* internal environment. I keep the room warm so the plant doesn’t shock. Using a separate micro mist Humidifier to raise the levels to 40%. Hopefully it can raise it somewhat. Im waiting on a separate air pump as mine died two weeks into my first grow. I am hoping when I attach the external pump the aeration will increase the humidity. Waiting on Grobo support to see if they can fix the issue. Thanks.


I fee your pain dude but just hold tight … what I’ve kearned is that these plants are very resilient we have all had issues with our units as we are the early adopters of the grobo


I’m not unreasonable. I’ll give it a day or so. Happy new year man😊


So my grobo is now set up in my cat room and my gauges are at 80 degrees and 40% before it was 66 degrees and 54% humidity in the garage are those numbers better? What can I do to improve them?


Those numbers are good I like to run 45 percent throughout the entire grow… the degrees are perfect … humidity is within range … only thing you can do if you wanna raise humidity is maybe buy a 20 dollar room humidifier to keep it within range during the days it’s dry … I got mine from Walmart for 15 dollars and works perfectly for the grobo … all in all the cat room is a better environment than the garage


Chris has you covered. :+1:


Great. Now I have to just sit back and watch her grow. I’m trying to not be an overly handsy grow mom. You can only imagine how spoiled my 5 yr old is lol. I just care about things. I like everything to run smoothly and be happy. I mean my cats have their on room lol.


Understood. It’s a 1/3 of year devoted to growing a plant so you want the best results possible. Don’t fuss too much it’s a plant it does it’s own thing for the most part. Kinda of like watching paint dry.

Oh and I know about the cats ruling. :point_down: