I used to have an iPhone last year before I lost it and I've been using a Pixel 8. I actually downloaded the app for android and used that to get a general idea of what they were getting and if I remember right, at 85% the readings were in the mid 500's. I've never heard of the photobio, I'll...
Another comment below mentioned the light intensity as being a possible factor. I may have underestimated just how powerful the light is in relation to their tolerances. VPD has been solid for the most part. I attached a pic with the last couple months and set the line at about the average...
That's great information. Thanks for sharing that. Next time it's hydro and if I ever decided to go back to soil, it'll be when I have the space to accommodate a container big enough to go the living soil route.
Consistent application was started after the problem started. The lime I use is pelletized and dissolves easily in water, so I would say it works relatively quickly. As for the pH of the lime, I'm not sure, which is why I included the run off pH.
For sure. When I started, I wanted to go organic, but experience is showing me that for these smaller container sizes, it's a lot trickier to manage than I expected and maybe more so than just going the hydro route.