hey sorry for my english. plants are 5 weeks old.
Spectrolight 400w + greenfox 150w
I use two sets of nuts. I pour field plants bio bizz heaven + bloom + grow + top max. The second part, canna flores + canna boost. The problem occurs in both cases. temperature 23-26’C, humidity 40-50%. my ph was too high but I managed to lower it.
I thought too much nuts, so only poured water, but the problem still exists. What else can I do?
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Your leaves won’t go back to the way they were before. Question is … is the problem getting worse ? Or has it stopped where it was?
And are those the only affected leaves? What’s the rest of the plant look like?
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Real hard to tell on a single snap shot but nute burn is the simplest explanation. Leaves won’t turn back. People could answer a hundred different things it “ looks like”. An old mechanic once told me “ when you hear hoof beats, don’t think zebras. In other words ,start with the simplest answer.
I’m not sure what your experience level is so please don’t take this the wrong way. The most common mistake newer growers make is over doing everything. Plants will tolerate being a bit under watered or under nourished. Not so much the other way. Hope this helps
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Hey @MarijuanaKills , welcome to Overgrow!
As @GrumpyOldBastards & @Bostonbud said a couple more pics wold help. To me it looks like nutriment burn, but is it getting worse (are other leaves still being affected)?
Best bet is pH’d water only for a couple waterings and then ease back into nutriments at 1/4 strength. Bring the level up as they show signs of ‘hungry’.
You can ‘hurt their feelings’ but they will forgive quickly. 
Maybe you could post a grow log of your current project?
Cheers
G
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Sage words of wisdom 
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Well, I admit I am a “looks like” man 
, not all the plants are affected (different strains?) and I don’t see typical dark green of a nute burn, I would go for Potassium deficiency …
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friends, today is even worse. The lower and middle leaves are sad and directed downwards. The upper floors look healthy. The ground is dry. the ph is good, the humidity today was 35%. may they have too little light downstairs?
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When problems go from bottom to top it might be related with roots, how often and how much do you water them? Have you lately transplanted them?
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I was thinking the same thing as George as soon as I saw the pic, for them to go like that quickly they are either very dry or drowning it has the same affect almost.
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once in three days i thought they were too wet and had no water for 6 days since then the problem got worse. last time they got water with a small dose of nuts. I think that too many nuts have blocked the potassium, is it possible? Is it a good idea to water the water + canna pk 13/14 or is it better just water?
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When I saw your first pics I was thinking possible K deficiency but hard to say without seeing the whole plant. Some nutrients are transient and problems will show on lower, middle or upper leaves depending on the problem.
Do your pots drain ok, might be root rot, take a plant out of the pot so the soil stays intact and look at the roots and give them a sniff, if they smell bad its root rot.
Your humidity is low so they will use more K and transpire more, but that will cause the leaf burn not make them a droopy like that.
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the lower leaves die, then dry, but even when very dry they do not fall off. only when I touch them will they fall
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I read the slightly damp at very bottom of pot and your roots do look good. Tgose pots going dry? I think im seeing lack of inputs. Mainly hydration. Bump phed water inputs up. If those pots are light the plants are trying to uptake more than whats there. Not nutrients. Thirst. Dry plants will wilt like that overnight. Will crisp on leaves edges and look almost like overwater. Bury one plant in phed water n see if she changes course
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Possiblity of water running off not actually saturating the soil? Im not throwing 100% at it just guessing but by looks you dont have a lot of time to figure it out. But theyre not gone yet.
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Do you have any recharge or microbes?