Yellow spots (not bugs)

Anyone have any clue? It's spreading throughout my veg, never had this problem before. No bugs at all. Like I said, been several years and never had this problem before.

Maybe calcium mag deficiency? Why's the PH? Maybe try feeding a little cal mag and see if she perks up.

Always have botanicaire's cal-mag when I feed. PH run off at 6.2-6.3.

put up more info. what do you feed, how much of it in a single dose, i.e. measure ppm if you can, and how often?

that looks like severe ph fluctuations, you change anything recently?

I've been doing my thing for a long time with no problems. I assumed it's a ph fluctuation, I use bluelab probes. Heading into town and gonna pick up a new probe for the machine.

Turns out it was the PH. My meter is out of whack. I changed the probe and it went haywire. Thanks for the replies.