Not Enough What?

[Jokefox]

Im thinking i need a boost in nitrogen?

Using jacks 321.
In a 3x3 tent
400 mh (switching to 600watt hps soon.
Autoflowers (7 different straings)
Photoperiod (1 strain)
20/4 on off

60 coco / 40 perlite

The auto hobbit and photo mango kush are the only two that seem to have this on the leaves. I think its not enough nitrogen. Figured id ask first. Thanks

 

[GT21]

Take a pic of the main stem and what ph

 

[Jokefox]

Shes the most stretchy one.

I mix a 4 gal rez every 3rd day.
Ph to 5.8 drifts up to 6.5 by the time its empty.

 

[GT21]

Shes the most stretchy one.

I mix a 4 gal rez every 3rd day.
Ph to 5.8 drifts up to 6.5 by the time its empty.

6.5 is too high.. chances are youre locking nutrients out

 

[MIMedGrower]

http://www.growweedeasy.com/magnesium-deficiency-cannabis