im no expert... But Im pretty sure those tips of the Fan Leafs.... Are pointing up..

Im almost positive that is a sign of heat stress. What are your Temps?

Next to that I'd say somthing is being locked out of your plants. Have you made sure your PH is in Check?

As well you should try and get a HPS as opposed to a MH for flowering, Or make sure all you CFLs are warm bulbs..

Cool Whites for Veg,, Warm Lights for flowering...

keep us POsted!

kd