Leaves curling downward?? Pics!

Can anyone tell me wht my babies are trying tell me is wrong wih them?? They are curling downward antare very light in color!!

Here's a closer pic

what's your Ph?

I try to keep it at 6.2 but I backed off the nutes and went straight distilled

Dont use distilled water

It looks to me like you have your light too close and they're cowering away, notice the ones furthest away aren't as bad, I recommend backing it off abit.

Looks like heat stress from the light to me, had that before. Raised my light and was good to go