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Wow, so my leaf offset on the plant that appeared thirsty was 0f and not even an hour after watering its back to a healthy - 2f. Makes me wonder how much info. you can actually obtain with frequent IR thermometer scans, just a matter of figuring out why your transpiration is off which Im sure...

Hmm, interesting study. Thanks for the advice Im mid-water now think I would have gone too dry come morning. This is my 3rd run with soil (rols), still getting used to the drop off in watering after mid-flower. I have pretty minimal experience with salt nutrients as well.

Thx for the input. What do you think in regards to the post to just made? Lol, sorry curious if you think I should water today or wait until morning. Edit: added a canopy shot

Damn, does this girl not look thirsty? Lights out in 5.5 hrs should I water now or leave for the morning, bein watering every other day but not since sunday now. Seemed moist on top this morning but maybe i was just squishing worms with my fingers, lol

No doubt, sounds like a struggle to keep the rH up in that dry environment. Pretty sure I would prefer it though, as I prefer the dry winter to any other time of the year, some areas are terrible for PM and bud rot as Ive heard the Pacific Northwest can be. I also have a tap water running...

VPD controls growth rates, so Im not too sure why you lost interest after 21 years.

The higher the VPD the more they transpire UNTIL your VPD gets too high and the stomata close in order to not dry out because of your extremely dry environment. Basically like the belly of an ethiopian child in starvation mode holding every bit of nutrition it can. Your plants afraid its going...

If your running 75f,30%rH with HPS bulbs you must be pushing off the charts like 1.7+, its no wonder you are watering every 3-4 days in small pots. How do your stomata even stay open? Your plants must barley transpire at all. Do you know the average difference between your leaf and ambient...

Yea but a higher VPD means LOWER rH, its basically the drying power of the air... Moisture does not add to the drying power therefore increasing my rH would only lower my VPD not raise it... Just to clarify to plan to top out at about 1.5-1.6... Ive heard a lot of people reccomend a temp, rH to...

Im running at 75f, 45%rH, but your running 75f, 30%rH and MY VPD is too high? Thats a little confusing

How does a higher vpd increase risk of budrot? Because of the dew point and your cold conrete floors? The increased transpiration? Could you explain.

Cola-oscopy

Bubba76 (pre-98 bubba x afghani '76) Thx, so should i continue to push VPD upwards of 1.6? Im running soil (rols) in 15gal. pots I was watering daily in stretch, and every other day after that. It seems I can only water every 3-4 days at this point, is that normal or do you think I overwatered...

I started noticing mild burnt and curled tips about week 5 of flower, Im currently mid week 7 and noticed the problem has gotten slightly worse. I personally feel that my VPD may be too high as I typically have a leaf offset of anywhere from - 5f- - 2f and currently have noticed it at 0 - +1f...

Doing some research Ive found multiple sources with varying "optimal" VPD ranges for each stage of growth. Ive heard from different sources that end of flower should not exceed:. 1.38, 1.48, 1.5, 1.6, and even 1.5-1.7 Im on my 3rd run now and it seems around start of late flower sometimes...

Thanks, I have seen these before. Will have to give them a try.

Huh? , I dont really care if its not an issue. That was the question. Think I could remove it if it was going to be an issue, just dont think its worth it otherwise.

So I recently had a small fan fall on top of one of my ladies, one of her tops was almost completely removed and was hanging on by some skin. I was able to stabilize her vitals and put her into a coma and rush her into the OR. I doctored her up with a toothpick and some duct tape. Im...

Im curious if using an air purifier along side the dehumidifer in my lung room will decrease this buildup.

Lol, thanks. Should I continue to strain this brown sludge? I seem to be able remove it quite easily. I try to keep up with cleanings so its not there but builds fast when dehumidifier is running 70%-80% of the time.