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I could, lol. Well, seems to me he was being scolded at one point over monopolizing the climate change thread with EV posts. Was encouraged to start an EV thread if I recall correctly. Maybe....he pushed the envelope?

IMO, if you are growing without adequate air movement, or maybe in a moist basement with tons of mold spores, or in a highly humid climate, maybe it's in your best interest to keep a lower humidity. I don't usually have 70-75% rh unless I'm in seedling stage. So, I don't adhere strictly to...

Great post!

Oh OK, wasn't aware exactly what light op is using. PAR is still good info to know.

Not sure if you are able to measure PAR, but a 600w light at 20" seems to me like too much light for a seedling. Assuming it's at 100% intensity.

Did a quick Google on "The Mythology of Vapor Pressure Deficit". Miraculously, the very Wikipedia link in my previous post came up first in the search. Not a myth.

Rice hulls can also be added for aeration, and they provide some silica I believe. They do break down over time however.

https://en.m.wikipedia.org/wiki/Vapour-pressure_deficit I honestly didn't know the exact definition before you posed the question. But, the link gives a definition and explanation. All I know is that for cannabis, seedlings and early vegetative stages, the number for vpd should be about 0.8...

Trump loves the uneducated.

Pretty sure you are correct. Not going to bet against that.:wink:

What makes me laugh is its all grievance politics too. Lol Republicans won't be happy until they do destroy democracy. Let's hope that is NEVER.

I run a heater to maintain the desired temperature for LED. Of course, that costs $$$. Then again, I also run two humidifiers to try to be close to desired VPD. AC Infinity 4" on intake and 6" for exhaust. So I always have negative pressure as I do care about smell. Not sure what to suggest...

https://abcnews-go-com.cdn.ampproject.org/v/s/abcnews.go.com/amp/International/wireStory/police-raid-moscow-gay-bars-after-supreme-court-105327174?amp_gsa=1&amp_js_v=a9&usqp=mq331AQGsAEggAID#amp_tf=From%20%251%24s&aoh=17015349006980&csi=0&referrer=https%3A%2F%2Fwww.google.com&ampshare=https%3A%2F...

Well, I guess I will just try to add some to my mix, and hope by doing that, magnesium will be there in the soil, available for the plant to uptake, and I will enjoy completely green foliage all the way to harvest! :D

I wonder if I'd be overdoing it on the langbeinite if I included 1-2 tsp into my soil mix, and then top dressed a bit ahead of flower also. I guess just be careful.

Thank you very much for your reply. Yes, was aware to go lightly with the langbeinite, and I've not used it in my base mix (Coots mix). I did try on my last two grow cycles, amending (top-dressed) a week ahead of flip, but I seem to still run into deficiency. 1 tsp doesn't seem like much in...

On adding langbeinite, @cannabiscrusader, when do you add it? And, in what amounts. I run City Picker SIPs, and coots mix. I consistently run into deficiency, assuming magnesium, maybe other elements during and after stretch.

https://www.nationalobserver.com/2023/11/29/news/single-handed-fight-against-alberta-climate-spin

I use a similar model to this...

Ok, so you are going to run LED with a lung room (the room the tent is in) that sits about 60-65 degrees. That means you will need to run a heater as your target temperature while running LED is in the low 80 degree range with lights on.