Brown spots on leaves - need some help

[Ranja]

These brown spots started showing up near the tips and move inward toward the main vein of the leaf. Looks like cal issue, but I'm using full strength Cal Mag (in my RO water). I'm using DWC and my pH ranges between 5.5-6.5. Currently in week 4 of veg, and feeding 850 ppm (700 scale). Please help. Thanks.

 

[PTSD 4 ME]

Re: Brown spots on leaves....need some help.

That should help. Posting a picture up for us will help also.

 

[PTSD 4 ME]

Re: Brown spots on leaves....need some help.

P,K, or Mn???

 

[Regor]

These brown spots started showing up near the tips and move inward toward the main vein of the leaf. Looks like cal issue, but I'm using full strength Cal Mag (in my RO water). I'm using DWC and my pH ranges between 5.5-6.5. Currently in week 4 of veg, and feeding 850 ppm (700 scale). Please help. Thanks.

Post some pics, it will help with identifying your issue.

 

[2clean]

Phosporous