Yellow/brown spots on leaves

[Grantyjames23]

Hi wonder if anyone could diagnose this problem I think it's CalMac deficiency, any help would be much appreciated cheers

 

[Renfro]

Well it does look like calcium but not magnesium.

 

[Renfro]

If you tell us more about your grow then we can perhaps point you towards corrective action.

Stuff like, medium, feed mix / ppm / pH, water source / ppm / pH.

 

[Grantyjames23]

If you tell us more about your grow then we can perhaps point you towards corrective action.

Stuff like, medium, feed mix / ppm / pH, water source / ppm / pH.

I'm using all mixed from the bio bizz range, in week 5 of flowering, my PH is around 6.2/6.5 when adding nutrients then applying it to the plants /top -max bio-bloom bio- grow. Appreciate the reply cheers

 

[Renfro]

Are you using RO or distilled water or tap water? Purified water lacks calcium.

 

[Grantyjames23]

Tap water, thanks for getting back cheers