My girl is in week four of flower and my humidity is a little high (upper 50's to low 60's). Inches higher after watering and she is getting really thirsty. I have a small grow space so no room for dehumidifier. I have researched on line but a little worried about using "store bought" dehumidifier products because of possible chemical contamination. Rock salt or bamboo charcoal seem to be the best approach. Any suggestions?
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DIY grow space 2.5' X 3.5' X 6.5'
315 LEC
6" Vortex exhaust fan w/speed control
6" Carbon filter
3- 6" fans
humidifier
temp and humidity gauge
5 gal smart pots w/ FFOF soil
FF trio nutrients -
Perhaps you could increase ventilation from a lower humidity area.completed 7 grows
what I have learned so far:
environment maters more than nutrients
at least a dab of nutrients in every watering
effective flushing before harvest is critical to quality -
Too low humidity can also cause problems, (don't ask what) but air flow is very import.A man believes what a man desires to be true.Comment
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I think that for those of us who don't have a 'sealed room' the ideal numbers will continue to be a struggle. Where I live, your humidity numbers would be considered ok.completed 7 grows
what I have learned so far:
environment maters more than nutrients
at least a dab of nutrients in every watering
effective flushing before harvest is critical to qualityComment
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Is your plant really bushy? If so, it can help to remove some of the leaves in the middle and bottom of the plant that aren't getting light anyway. If it's completely in the dark, it's not really doing much for your plant anyway. Each leaf gives off water vapor all the time, so if you take some of them out it'll help bring down the humidity in the grow space.Originally posted by PuravidaC View Post
If you don't have a fan in there, it can help to add even a desktop fan to circulate the air. It won't bring the humidity down but it helps prevent white powdery mold or bud rot by making sure there's lots of airflow in the space at all times. If your fan is too strong to blow directly at your plants, you can also point it at a wall, or over/under the plants, so they're still getting a nice breeze without waving around in the wind
If you don't have an exhaust fan emptying out the humid air and replacing with drier air, adding that will also make a big difference!
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Trimmed one last time as it was bushy. Looks good now, at least I can see through plant. I have a small fan (4") in addition to intake and exhaust fans to help with air movement. During flower last grow I directed the small fan toward lower section of plant without any ill effect. Just remember (duh) and did the same today. Will monitor humidity...
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I have seen something that might match your description online once...
Look up 'PINGI i-Dry XL' (and maybe there are also L/M/S versions?), I never used one, so can't say if it would fit your space or how effective it would be, but still it seems to be the smallest dehumidifying device I have seen... CheersComment
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The Ping contraption looks like a peltier type dehumidifier. Online reviews for these seem pretty mixed. @PravidaC, if you try it out please let us know if it's effective
I've been looking at the Pure Enrichment dehumidifier on Amazon, but having lived in some very damp places in my life and having tried various devices I'm suspicious of anything but the heat pump full room dehumidifiers and they're nearly as expensive to run as an air conditioner. With all the air exchange our tents/cabinet do I'm not sure any dehumidifier can be very efficient.Sand, sea, sun, sausages, and sinsemilla.
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