Cannabis

[Jungle]

hello i am seeing this on my plants, they come more brown than yellow , what s this pls ????? its because of magnisium ?????? the ph of them is perfect , i don t think is about ph , i am thinking that they need more CAL MAG . But i am not sure.

thanks for your help .

[Mollisol]

Can you provide more details?

[SoOrbudgal]

Like what are you feeding them? What's the temp enviornment like?

[Rwise]

And whats all those white spots, Bugs? Time for a look with a 30x (or more) zoom lens, look at the under side of the leaves also.
What is "perfect PH"?

[kingfish]

I'm confused. Is this a Auto plant? It is flowering yet I see a three finger leaf. If so and the leaf is on the bottom of the plant, just pluck it. You might want to cut back a little on the nutrients.

[Sixwinds]

I'm also curious about the perfect PH

Those spots look like spider mites to me.

[Bluey]

When my pH ran too high last grow I got similar patches on a few leaves on my sativas. It was a boron deficiency I assumed. They were a little darker though.