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)

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?

sorry, not much of a hydro person so don't know all the signs in your environment.

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?

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.