Help! Curling leaves!

One of my plant' leaves started to curl, not up or down, just curl like a taco. I don't know what it could be. Temps are 77-78 during the day and 65-67 at night. The HPS light is about 12 inches form the top.

Hmmm, what do the roots look like?

the roots are white and healthy

no one?!?!

Well if it happened suddenly, over 1 day I would blame your light being too close.

they look Dry.

RawBudzski said:

Well if it happened suddenly, over 1 day I would blame your light being too close.

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i agree light to close its from heat stress. even though your room temps are in check the lumen heat is killing them im almost certain.

It didn't occur over 1 day, more like 5-6 days. New growth comes out normal then curls, light too close? My hand doesn't even get warm when I put my hand by the plant

i am having the sam problem right now i think it might be a prob with circulation and vetalation i am gooing to go get a osolating fan tomorrow and let you know how that works

Did adding a fan help with the problem Pen?

Penyajo said:

View attachment 1436642View attachment 1436641View attachment 1436643i am having the sam problem right now i think it might be a prob with circulation and vetalation i am gooing to go get a osolating fan tomorrow and let you know how that works

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i had the same issues.. but it just went away, from when i asked people said it was from overwatering... i didnt understand that cause im growing in water, but i let the res completely dry out for like half a day and then filled it up and i guess they were right lol, my leaves arent curled up anymore

This can happen from having nute strength too high, try flushing and adding lower ppm