First grow Super Lemon Haze leaf curl up

[leo19]

super lemon haze leaf curl Up
Any idea what I'm doing wrong with my girls

 

[Rifleman]

It looks like heat stress to me. Do you have a fan circulating the air? Fresh air intake? Ample exhaust?

 

[leo19]

Yes fan circulating air and air intake running temperature fluctuating from 87 to 80. Exhaust fan is off at the moment no smell so no point to run. Thank for help

 

[TheRoach]

Yes fan circulating air and air intake running temperature fluctuating from 87 to 80. Exhaust fan is off at the moment no smell so no point to run. Thank for help ��

The exhaust should be on 24/7

 

[leo19]

How high light should be from plants top 600w hps ?

 

[leo19]

At the moment light from plants top is 67 cm

 

[TheRoach]

I keep it around 50cm from the top of the plants