Soil ph - Biobizz All mix

These things only measure light relatively accurately.

No. That's good..it is higher.. but if you've good growth & no ph or issues. Then keep chugging along..

if this helps I'm using light-mix and my runoff is always ~7 pH, but I water always with 6.3

Those soil pH meters are tricky. If you want to use one, you need to learn what normal is for a healthy plant before assumig anything, because what it reads is impacted by things like evaporation and how wet the soil is. Probably needs some minimum amount to be accurate? i'm not sure, but i know they are a bit inconsistent in their readings from waht i've read over the years. 6.5 is fine for soil. 6.5-6.8 is great for soil. I'd suggest 6.0 for soilless/hydro and that gives you plenty of leeway both up and down to avoid locking out Ca or something else. Anyway, form a baseline with the readings and what you observe from plant before you blindly follow what the meter says. After that any deviations will be something to consider along with any other observed behaviour in order to fix potential future issues. Same with reading runoff pH with strips or a probe.. a baseline is needed during good health before it is useful info. Unless you run so much goddamn water through it you even it out, lol.. but that's not wise. 10% runoff is all you ever need in a soilles context.

Those soil pH meters are tricky. If you want to use one, you need to learn what normal is for a healthy plant before assumig anything, because what it reads is impacted by things like evaporation and how wet the soil is. Probably needs some minimum amount to be accurate? i'm not sure, but i know they are a bit inconsistent in their readings from waht i've read over the years. 6.5 is fine for soil. 6.5-6.8 is great for soil. I'd suggest 6.0 for soilless/hydro and that gives you plenty of leeway both up and down to avoid locking out Ca or something else. Anyway, form a baseline with the readings and what you observe from plant before you blindly follow what the meter says. After that any deviations will be something to consider along with any other observed behaviour in order to fix potential future issues. Same with reading runoff pH with strips or a probe.. a baseline is needed during good health before it is useful info. Unless you run so much goddamn water through it you even it out, lol.. but that's not wise. 10% runoff is all you ever need in a soilles context.

I don't trust those cheesy 3 way meters too much. First off, how do your plants look? If they look good don't go chasing stuff. I'd monitor your runoff pH moreso than your soil and watch for drastic fluctuations.