New Grower leaf curl

[steelydan]

This is the only one of six afghan kush with the leaves curling in, they are all being treated the same?
any ideas?
cheers
norman

 

[greenzilla]

not 100% but looks to me like there getting too much heat. I would wait for more responses tho as im only a newbie

 

[ImKillface]

Looks like heat stress. Maybe there is a hot spot in your tent. Move the plants around in your tent and see if it goes away.

 

[steelydan]

cheers will do that now
norman

 

[A4]

Could be heat, also if you have a fan blowing directly on them it will cause that leaf curl or low RH inside your grow room. Look very healthy otherwise. During flowering I don't worry too much about that if my lights are a little too close. The RH though, if it is too low will cause rapid transpiration and won't allow the plants to take up nutrients properly, same with having the fan blowing directly on the leaves. The plant will take up lots of water but not to much nutrients and you will loose some yield from that.

 

[steelydan]

That is the problem, the fan, i have an oscillating fan that is maybe too near
cheers
norman