flipped over?

Anybody know what it means if some leaves start to turn upsidedown kind of?

Whats weird is i have 6 plants in the same tray they all get the exact same thing. But only 1 plant has looks like some burns and some leaves are flipping over.

ANy suggestions?

Got pics?KEEP SMOKE ALIVE!!

is it 2 close to the light,, maybe light nut burn.. try some things and see how they react..

I have seen a few fan leaves twist upside down before myself, strange but not really a problem.

What kind of lights are you using? My plants had the same problem when my ballast broke and I had to use reptile lighting for a week while waiting for my new ballast. They all fixed themselves a few days after putting in the MH back in the grow closet.