This just started to happen with in a few days now...

Ph is perfect where it is. Perfect for optimal phosphorus uptake, when it gets to 6.2 you bring her back up to 6.5 -6.8. Overtime she will drift back down to 6.2 naturally as she grows (normally). Guttation is the process where liquid, primarily water, is exuded from plants through special pores called hydathodes, usually at the tips or edges of leaves. This occurs when the plant's roots absorb more water than it can transpire, especially when transpiration rates are low due to high humidity, often at night or early morning. Not surprised when new hobby growers try and run 65+%rh daytime humidity to "optimize" vpd with zero explanation on how important it is to deal with that high humidity during light off. With light off and the corresponding 10F drop in temps the 65%rh is instantly going to 75%rh. overnight. Soon as that happens the stomata are going to close almost entirely and all gas exchange will practically cease. Vpd is 10x less effective at night, keep your night rh to 44-55rh at most. Although 100% of carbon is captured during the day, while photosynthesis is active the plant can only ly utilize 10% of all atp production during daylight. 90% of usable atp is created when transpiration ceases, this is when most of the cellular respiration occurs. At night. While a relative humidity (RH) of 80% can significantly reduce gas exchange through stomata, it doesn't completely halt it. Stomata close in response to various factors, including high humidity, to minimize water loss. However, even with closed stomata, some gas exchange can still occur through the cuticle, though at a much slower rate. Nutrient uptake in cells requires the expenditure of ATP. (when transpiration is off). Your entire plant is growing with daytime atp 10%. The ridiculous high rh is causing almost entire closure of stomata preventing your plant from having the energy to do much of anything including uptake. If your ph is good, get yourself a soil ec metre so long as there is capacity to do so throw in a balanced full mineral fertilizer suited to stage of growth.

Try ph around 6,2 for better NPK uptake.EC of runoff would be interesting. Get spruzit for/against the thrips. Do not direct your could steam onto /into your plant, since the temperature fluctuations are bad for your ladies. More light only when she's fit again. That's what I would try before putting more things into the grow medium. Happy growing

100 ppm as extra to base of epsom salt for 2-3 watering cycles. Buy not only epsom salt ( magnesium sulfate) but mono potassium too. 150 ppm as extra to your feed for 2 watering cycles and i think girls should perk up. Despite you having wind, humidifier , your plants are still lanky, something wrong in feeding, maybe light is a bit too weak or too far. Simple lux app , 20000 -30000 lux is your target.

Reminds lack of potassium and magnesium . Sulphur is lime green, so definitely you treater from wrong thing and could make damage. Toxicities exist too, pouring calmag on any occasion - not right way of growing. Create good feeding, watch ph. Those two will sort/wont allow all issues in most cases. Its not a rocket science if you do right, its huge challenge - if something was done wrong ...