Serious case of clawing caused by?

Anyone have an idea what is going on there with the excess clawing on the one plant (and a bit on the others)? I dont think its wind but Nitrogen. I havent been watering with much runoff so perhaps the salts built up to excess N?

I just changed my reservoir water and flushed at 650 PPM since Im in the mid-late veg.

I am using mostly a peat based media with chemical nutes 20-10-20 Dr. Bugbee formula.

those look like they got way overwatered at some point but at close up the curled leaves look crispy......you pH your water?

They are in soiless tho. I didnt think they were overwatered because they didnt have much runoff. It could cause this???

Nitrogen tox setting in

mudballs said:

Nitrogen tox setting in

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clawing, dark shinny leaves, my money is with mudball

Overgrowtho said:

They are in soiless tho. I didnt think they were overwatered because they didnt have much runoff. It could cause this???

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You should feed until runoff, just don't let them sit in it!

mudballs said:

Nitrogen tox setting in

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+1

@Stuck27 nailed the symptoms.

Overgrowtho said:

I havent been watering with much runoff so perhaps the salts built up to excess N?

Click to expand...

Overgrowtho said:

They are in soiless tho. I didnt think they were overwatered because they didnt have much runoff. It could cause this???

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You should always water to substantial run off..........especially in a soilless medium.

Okay dudes I will flush the built up salts more and up my watering game so as to get better runoff each watering