Holy shit, seems way too acidic, for sure nutrient lockout I’m assuming but I’m no soil growerI tested runoff and it came in at 4 pH...
I flushed the pot quite heavily with tap water 7-7.5 pH.
In the end I fed it with 1/3 dose at 6.0 pH, runoff was 6.5 pH. (it reversed?!?)
Will see in some time, if it made the difference.
My guess since there is no tray under the pot is he didn’t water till runoff so the water stayed in pockets and caused havochow can you have a runoff ph of 4? Thats a totally insane value. You should only get that if you use mineral fert. for a long time.