What’s happening?

[Dub]

I’ve never had spots on the leaves like this. They are only on some of the older leaves, I’m not sure if the newer leaves will develop these spots, the plant is only about six weeks old. I’ve tried looking it up but I can’t find spots that look like this on web pages for troubleshooting. Anyone have a guess?

 

[Rwise]

Did you read this?
https://www.growweedeasy.com/cannabis-plant-problems/ph-fluctuations

 

[Bluey]

What pH range are you inputing and what medium are you using?

 

[dirtymike]

I found your issue in the tutorials under "plant problems" seems you have more than one. Ain't growing weed easy.

 

[Dub]

DWC ph between 5.5 and 6.5

 

[Bluey]

Starting pH try 5.8 and then let it rise.