LED low temp interveinal chlorosis er what!!??

[LostTribe]

 

[LostTribe]

No exhaust running 30% fec4800 4x4 tent
Rh 62 77f.

Temp was 60. 12/12 3days
Jacks 321full strength 2.4ec 5.8ph
100 perlite. No coco bullshit.

 

[Chevy cHaze]

No exhaust...
How do you get fresh air to the plants?

 

[LostTribe]

No exhaust...
How do you get fresh air to the plants?

Its cold. I open it up several times a day. I get this same issue with the exhaust running too.