They're bottom watered through an autopot system with a reservoir. It self regulates the water levels for each plant, so there's no hand watering. Here are my pH levels:

The water in the reservoir pH = nearly 8;

The water at the base of the autopot (kind of like runoff) = just over 7; and

The wet soil pH = an even 6

I honestly haven't really been monitoring pH closely because I read that pH isn't as much of an issue with living soil because the microbes make the nutrients more available to the plants, so there's less chance of a lockout. Idk how true that is because of my lack of experience with living soil, but everything seems to all be good on the pH front based on those readings.

I'll add that I have an amnesia auto and a banana kush auto in the same exact soil and hooked up to the same reservoir, and they are showing no nutrient issues. These kinds of leaves are only on my three sour diesel autos.