Do leaves curl in flower?

I've got a NL about 1 week into flower. The the top leaves are curling under a bit but there is no yellowing. I thought I read that this is normal in flower due to nitrogen being consumed. Is this correct?

clawing is usually associated with too much heat; what are your temps like?

I've got some serious clawing going on myself. The closet where my grow is kept connects to the attic. The attic door got left open AND my light timer got jacked up leaving the lights on for 24hrs after I had been flowering at 12/12 for over 3 weeks! I changed the water and haven't added any nuts. I disconnected my CFL side lights leaving just an air cooled 250w HPS and the temps have been in the low 80's all day. Any other advice is greatly appreciated. Oh by the way Cugine, good luck with your situation. Sorry to throw my baggage on to your thread but maybe we can both be educated here...

My curl is more like a canoe curl...but it affectin the leaves closer to the light. The top leaves are about 1 foot from the light (I'm maxed out hieght wise). Temps in the cab at around 82 degrees.

so they are turning up? are the edges brown and crispy?

kindprincess said:

so they are turning up? are the edges brown and crispy?

Click to expand...

no upside down canoe...leaves all green..no brown or crispy

does it ever get hotter than that? do you have good ventilation replacing air in the cab?

kindprincess said:

does it ever get hotter than that? do you have good ventilation replacing air in the cab?

Click to expand...

It never ever gets above 87,,,,when the lights are on the doors are open to the entire room

87 is enough to make them claw up; you need to aim for 70's if possible. that's probably the main reason they are clawing up...

what are you feeding?