Leaves folding up?

[masterg]

Hi, my plants leaves are folding up like from the middle line bit, picture a piece of paper getting folded in half the long way, its weird, any ides how come?

[Zandor]

Are then brittle or crispy when you touch them? Is there spots or other color showing?

If the answer is no then don't worry.

[masterg]

Sup zandor, nah i cant see any spots or the leavs aint dry or crispy, the stems are a lil purple if thats anythin 2 do with it?