Can Anyone Confirm Whether This Is Light Burn?

[Rootbound]

Turns out it's a Zinc deficiency, compounded by high PH.

http://www.theweedblog.com/how-to-recognize-zinc-deficiencies-in-marijuana-plants/

Mystery solved!

Winner winner chicken dinner! I see no nitrogen deficiency. Zinc- for sure. Check your run off ph, you will be surprised.

 

[carokannc6]

Winner winner chicken dinner! I see no nitrogen deficiency. Zinc- for sure. Check your run off ph, you will be surprised.

Quick question. I have distilled water with 7.83 PH, can i flush/water with it or is it to high? (I assume 0.83+ PH shouldnt be critical?)

 

[3N1GM4]

Pretty sure that is too high
Should be between 5.5 and 6.5

 

[covertgrow]

Are u adding cal mag to your ro water cause true ro water does need cal mag added to the mix tho fyi

 

[covertgrow]

And yes a lil to high its always best to make sure the water is always adjusted ph down first to at least 6 to 6.5 for soil what kinda soil are u using for ur grow?