Plant leafs stickin straight up

what is causin my plant's leafs to stick str8 up in the air? i dont have access to my cam at the moment but a couple of my plants leafs arent out in a fan but cuped upward to where u see the under leaf thanks for the help

I had the same thing happen on my last grow just after i put them on flower 12/12.they went back to normal after a few days & i just cropped 4 healthy plants..so nothing to worry about i dont think.
cant tell you why it happens tho,stretching for light would be my best guess.

I would say its hot in there..whats the temp and humidity?..if its gets hotter than 80,for a long period of time..make sure they are well watered and the humidity should be around 60-70%..

u nailed it 20% to 30% and its always over 80 mostly mid 90s