so, i have 9 pots in a 4x8 tent and im not sure exactly how much but i think each pot got like a half gallon of water a couple days ago when i transplanted clones. i had my cool mist humidifier running, as usual, and humidity was “up there” like 50s or 60’s. i also have an 8 inch ac infinity carbon filter and inline fan running on speed one. even after traveling through 25 feet of ducting the cool mist particles somehow still remain particles and i dont like breathing it, so, i turned off the humidifier to see what the humidity would drop to and level out at with just the water evaporating from 9 fabric pots… and… after leaving and getting back from the gym and the store, humidity was at 24%. it is winter here but 24% in a closed tent with 9 fabric pots filled with at least a half gallon of water each? plus the temp is mid 80’s cause of the heat from the lights brings up the temp like 10 degrees hotter in the tent than the apartment is set at. i know inline fans suck some heat and some humidity out, but, the inline fan is only set at level 1. im a noob and all but it seems like the plants wouldnt be able to dry out properly or fast enough and would cause problems if the humidity was above 50% always cause i would think the high humidity level would make it difficult for the water in the pots to naturally evaporate. the plants themselves seem fine in 24-30% humidity, but they are freshly transplanted clones and basically look the same each day. i heard it takes like 2 weeks until transplanted clones start to grow again. is that true? how low of humidity is too low? or better yet, what signs do plants give off if humidity is too low? i was really hoping that enough humidity would come from the watered plants to not need a humidifier running the whole grow but maybe a couple hours is too soon to tell and maybe the humidity will raise up to mid 30s or early 40s. idk. any input will be appreciated. the only thing that sucks about growing indoor in winter so far is humidity for me.
Do you trust your gauge? If you recently watered 9 containers I’d think uoud have a least hit 40% or so. Maybe your getting an incorrect reading.
i actually didnt think the guage could be faulty. i recently ordered more temp/humidity guages. got a 4 pack for like 10 bucks off amazon. i put em around the apartment. i just checked the ones around the apartment and they range from 55 to 60% humidity, but thats because it recently snowed and then warmed up enough to melt it all, so, lots of natural humidity here right now even tho its winter. anywho, i checked the guage in the tent and it says 32%, which is pretty weird considering the whole apartment is between 55 and 60. so, i took one of the humidity guages i recently just got and put it in the tent. its been about 10 minutes and so far the new guage has dropped downt from 60 to 50%. the guage 4 feet away sitting on a table outside the tent says 54%. the humidity in the tent smells more humid than the normal air in the apartment, so, not sure why the guage in the tent has a reading lower than the one outside the tent. im not messing with you. but, its only been 10 minutes. not sure how long it takes this guage to stabalize and give a true reading. will know more as time goes on but so far seems like old guage was giving a lower reading than actual humidity. thanks alot man. all that extra humidity was probably slowing things down with my freshly transplanted clones
Clones need high humidity just like seedlings. I keep new clones at 70-90 %. They shouldn’t drop below 40% even in flower.
from all the videos i saw clones are “hardened off” to be able to survive in a pot in the tent at regular humidity levels. some people plant whole outdoor fields with clones and so this process of hardening off makes sense for indoor plants as well. not sure how a pot with moist potting mix would be able to do anything other than stay moist in an environment that was close to 90% himidity. i would assume the roots would rot and the clones would die, but of course you didnt mention if you were referring to freshly cut clones put in a dome or rooted clones freshly transplanted after being hardened off
Sorry, I didn’t clarify. I was referring to newly cut unrooted clones. Sorry for the confusion. I went back and reread, I did say new clones…. Lol
As soon as they pop roots, I started dropping rh by opening vents on my propagation dome. When I transplant them, normal environment conditions from there on.
guess what. i just checked the humidity again and the new gauge was reading wrong too. the humidity gauge on the spider farmer humidifier was reading 65%, which makes sense cause the air in the tent smells more humid than the air in the apartment. the other two gauges were off by at least 15 points, saying it was way lower than it actually was. i set the humidifier to 45% and turned up the inline fan to speed #2. hopefully ill get closer to the ideal humidity, whicih from what i hear is around 45%, right?
Seedlings and clones like the humidity even higher
alright, thanks. i planted my clones in fabric pots 3 days ago and only the outer edge circling the top of the medium is dry on only one of the fabric pots. my humidity was reading wrong. i wrote it wrong in the other message. my old humidity gauge was saying 30%, my new one says 40% and the humidity gauge on my spider farmer humidifier says 65%. i just installed the spider farmer humidifier yesterday evening. before that i was ajusting my humidity according to the old gauge saying it was 35 points lower than it actually was, meaning, when it said 50-65% it was actually near max humidity, which explains why the pots are drying out so slowly. glad i got the help i needed regarding my gauges being wrong, could of killed my clones if that one person didnt mention anything. pretty amazing people here. but now i have a new problem, which so far seems only a dehumidifier can fix. i put my inline fan on speed 2 and overnight till this morning the humidity is still reading 65%, so i increased the speed to #3 in hopes it will suck more humidity out to lower the humidity level so the pots have a better environment so they can dry out at a proper pace so i dont get root rot after 2 months of getting to this point, but, im just a noob. watching videos can only help so much. i still learning how to do this right. made a bunch of mistakes but i concluded it was acceptable due to im new at this. any recommendations for a decent grow tent dehumidifier? is that the best way to help keep humidity levels precisely controlled?
Seedlings and fresh cut clones get the water from the air since they have no roots yet.
65 is a good number for veg you wont get root rot, unless you water too often. If your clones all have roots then treat them like they’re in veg. Google VPD
I have a dehumidifier in both the lung room and both grow rooms. It’s mostly summer I have problems with humidity, but controlling lung room is a great start, extra one in grow room makes sure it stays stable.
