Help, my leaves are turning down!

[ballisticsurf]

Hello i need help myleaves are turning down and i am using botanicaire whole lienup and groin in a 3x3 tent with a 400watt hps and 2x 100 watt leds. my ph is 6.2 and i use canna coco., an in airpot. about to be in week 3 tomarrow, tuesday. thank you

 

[Seamaiden]

Could be a couple of things. Temperature or possibly an overdose of N. I'm thinking more along the lines of heat coupled with a relative humidity the plant's not real happy with.

 

[kolah]

just the top leaves? the others look fine.

 

[ballisticsurf]

just the to leaves

yes just the top leaves. i just switched to running at night to help keep cool and hopefully that helps. i checked the PH of my run off today and it was at 5.3
I also pulled the nutes back 20 but kept all supplements at 100%thank you will get back to yall in a couple days to let every one know how she is doing.