Help! My autoflowers look like this all of a sudden!

The two plants in 3 gallon pots are lemon haze autofowers. They’ve been doing great until yesterday, when they suddenly looked like this. They’re in a small greenhouse that I open during the day, and they’re growing in Happy Frog mixed with worm castings and local compost. My photoperiods are doing fine. Here's a photo of the pH meter (used in a slurry of soil and spring water and left to sit for 30 minutes). Can these plants be saved? If so, how? Thank you for any help you can give!

This looks kind of like nutrient burn to me. What were you feeding them at the time? I know it's been a while. But, could you please provide an update? I am wondering how things turned out.

ah these pH meters - forget them.

One thing that I keep coming back to ad a new grower is the importance of PH. A ph lock can make your plant present multiple deficiencies at once making the issue difficult to diagnose. Make sure the pH going in is consistent.

Ukulele Haze said:

This looks kind of like nutrient burn to me. What were you feeding them at the time? I know it's been a while. But, could you please provide an update? I am wondering how things turned out.

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They turned out fine, thanks! They were growing in Happy Frog and worm castings, so other than molasses, I didn't give them nutes.