What is causing this

[DrMed]

Sorry, no pix, however, someone has seen this. Dark green veins with yellowing leaf surfaces. pH is 7.0, I'v added some CalMag. Also, on other plants, Yellowing leaves with dark necrotic places. HELP?

 

[Weed Pharma]

If you look, top left of center on this page- "Diagnose Sick Plants"- perhaps find a pic of what you are seeing.

 

[NebulaHaze]

It's really tough without pictures since there's many different problems that can cause those symptoms. Is it possible to take a picture of the plant in the setup, as well as pic of the affected leaves? If not like Weed Pharma said, the diagnose your plant tool at the top of the page may help you get started

I will say that 7 pH is a bit high, and the pH is one of the most common reasons to see deficiencies. If you're in soil you want to keep it between 6-7 pH. Is the pH coming out the bottom in the right range too?

We'll get to the bottom of this

 

[Karlee]

Is this a first grow?
Try this google

​​​​​​dark green leafs with yellow, disease marijuana
and post the pic that looks like what you see!

 

[DrMed]

Been growing 14 years, just not had this experience before. Thanx

 

[DrMed]

I will get pix at "lights out" Thanx