oddly wilting leaves-need help!

My GDP just started to do this since like 3 or 4 days ago. I considered it to be an underwatering problem, but now i'm wondering if its something to do with the nutrients. The humidity stays at 58% and the temp around 68. Plenty of air ventilation.

Currently the nutes are somewhere around a 1-2-3 ratio with GH nutes. I'm fazing out the grow as they are in almost into their second week of flowering.

For a while they were being watered only twice a day and were growing great, when they started showing these symptoms i bumped it up to 4 times. I'm using an ebb and flow bucket system, btw. There is no sign of nute deficiency or overdose, unless the wilting is one. Also the leaves have become a bit soft and thin on the ones that dont have the heavy canoeing.

Oh and also the plants are suffering from a slight PM problem, which i try to stay on top of with backing soda water. So perhaps that could be a cause, but its not too bad.

What should i do to fix this?

(the picture makes the green color look wrong, but they are a perfectly healthy color green IRL)
 

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leaves curl from the ends when overwatered, and droop from the stem when underwaterd. those leaves look curled.
 
thanks g, i'll remember that.

The stems connecting the curling leaves are a bit flimsy, they're having a hard time holding up the leaf. Also, the leaves that arnt curling or drooping, are getting soft or less firm. Is this all explained by overwatering?
 
Is this a good example? If you agree, and your plants are luscious green, than it most likely is Nitrogen toxicity. Back off on your nutes by 25%. to say EC 1.5 and feed only bloom for a week. Than 2nd week go to EC 2 with 1 micro 2 bloom ratio. This happened to me when during VEG, I overfed with N. This was in hydroton. The only other thing is you may have had a PH spike?
 

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Looks like too much N to me as well. I have had this when I know I wasn't overfeeding though so I can't say for sure. Is it happening mostly to the inner branches or just everywhere? I would dry it out and flush next watering.
 
its starting to happen everywhere but mostly showing up on the top large leaves. Yeah its gotta be too much N because i have not been watering them that much at all.

Thanks guys,you saved me. :blsmoke:
 
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