humity troubles i think?

[provos]

just covered room in black white 6 by 4 first time.my top leaves seem to be going very light green to yellow? dont know if its the balck white causing to much humidity what should the humidty be?and temp light on off in flowering

 

[motherlode]

moved your thread to the infirmary section

sounds like maybe they are hungry for more nutes

but without pix and more info - like media used, nutes etc

Im just shooting in the dark

 

[potgutz]

Flowering humidity should b between 40/60% temp should be 20/28 degrees celsius

 

[FruitOfTheLabor]

sounds like ur lights could be to close causing them to bleach ur leaves?