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Makeitlegal started grow question 4 years ago
Added my 3 quantum board 450 watts and my temps are great at 25 c but my humidty has gone up to 65 % and I'm wondering how much of a problem this is going to be in flower .I have plenty of air movement . I just don't want mildew or anything .
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8 weeks
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18 comments · 4 years ago
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Week 6
Techniques. ScrOG
Stick answered grow question 4 years ago
Hi @Makeitlegal, congrats on your new QBs! Your current relative humidity would definitely become a problem in flowering stage, as buds could be affected by mold/rot. I like to decrease the relative humidity right after the stretch has ended, around 35%, in order to prevent bud-rot / mold and encourage resin production. And this is done by combining my air extractor (increase speed) and a tiny dehumidifier from my local growshop (absorb water in the air). Hope this will help, keep us up-to-date and happy growing :facepunch:
CRiSPrGrow answered grow question 4 years ago
Hey there , humidity goes up and down with your watering cycle so just be aware of that fact whilst taking measurements. Basically it's no harm done at this point. The main reason why folks like to get lower humidity is because they're tryen to prevent like fungus, rot, and even bugs that seem to thrive at 65% . Another thing is that trykes pop out a bit more in lower humidity levels. you're on week 3 of flower so try to dial in your humidity and temps - that can go a real long way towards your yield ! If you have good air circulation already not much more you can do except : make sure the exhaust goes out the room completely, or add an air intake or increase the air intake with cooler drier outside air. The demidifier works too, but i don t use one. Better safe than sorry bro - you want to get on that ! dassit :rocket:
OutForReal answered grow question 4 years ago
Hello ! During the stretch phase and the early flowering you must have a relative humidity between 50 and 70% . During the mid flowering you need to be between 50 and 60% and in late flowering it's better to be between 30 and 40%. So we can say that you have 5% more than needed so it's not a real issue but it could be if you don't find a way to low yout humidity in late flowering. To low you humidity I recommend you to buy a Moisture absorber (like the Aero 360 from RUBSON) it works really well in small spaces (up to 20 square meter) . I hope it will help you :grin::+1: