DWC folhas caídas 32C 65% humidade 600ppm

too hot, first of all buy a bigger air pump, will help with this temperature

N? i usually don't respong to others, or rarely.. .but this would have glossy, shiny leaves if it had too much N. The symptoms don't point at N-tox. 1-2-3 is not a great ratio for flower. 1-2-3 where K comes out around 200ppm, results in 80ppm N / 70ppm P andn 200ppm K. Almost certainly going to be short on N and a really good chance too much P. It may take weeks for the problem to rear its head, but it's happening. Probably burn your canopy or fade significantly, which unlike past beliefs does nothing good for your plant but make it work harder and probably grow more slowly compared to not starving it of needed molecules for growth. hydro/dwc - definitely going to start burning leaves >200ppm K... whether it happens at 210 or 220 or wathever will somewhat depend on environmental variables and genetics in use... assumes a somewhat rational ratio of nutes otherwise or you get tainted info due to lockout and such.

32C is quite warm.. could be the cause. Higher humidity can mitigate higher temps to some extent, but maybe not this time.. there is variety in any single plant as to how much it can handle, too. I doubt it is fertilizer related -- while yo have some minor tip burn, it's not too dark (too lush) or glossy or otherwise showing a smorgasborg of symptoms... don't switch out water for 0-nutes for a week.. drastic changes like that are never good for the plant... only in instances of extreme catastrophe relating to nutes would it be a good idea, and better to be certain than guessing for that. Like i said, this is not a nute problem. Get your temps down a bit, if you can. I bet 1-2 C might be enough.

Way too much nitrogen in feed for 1. Severe nitrogen toxicity. 2nd roots are not getting enough attention from way they are sagging or your ph is off. Water temp is too hot. Flowering npk ratio is 1-2-3.

32 C??!! That’s 90 F. That’s your problem Unless you have an amazing reservoir cooler, that’s your issue. The plants might be able to take 30 to, but your Rez being that hot is a huge problem.

She's got FAR too much nitrogen in her nute mix.... Time for a bucket change and I'd even give her a bit of a flush - couple of days in plain pH'd water - get that nitrogen out of her system and then, instead of just adding nutes into that plain water bucket, do another bucket change because she will HOPEFULLY have leached out the excess nutes. Without a diary, I can't advise you about either your nute levels or the mix you should be giving ... but she's desperate for you to cut the nitrogen-heavy nutes WAY down and increase the P and K nutes... If this is an autoflower (don't even know that!), the ppm shouldn't be higher than about 450 (EC around 0.9 - 1.0) ... the pH needs to be between 5.5 and 6.2 .... Clean her out... and good luck!

Agradeço os amigos que ajudaram, vou manter a tenda aberta durante o dia, e baixar a intensidade das luzes pra 50%

Also reduce light output until you solve problem, will slow down any deficiencies and damage, and will help drop your temp as well.

Yeah, possible heat stress and possible nute tox. I wouldn't do a res change, but I would pull a little water and add some ph'd water to drop the ec/ppm to where you want it. Get your Temps down if you can. Also double check all your gear. Fans working, pumps working. And check water temperature.. high res temps are bad news bears. Good luck

Lower your temps and humidity as quickly as possible. Ideal temperature for flowering is around 25°C - anything above 30°C is bad and may cause heat stress. Aim for 40-60% humidity - again, anything over 60% is bad. To me they look a little wilted from the excessive heat. If you can bring that down I'm sure they'll bounce right back.