Hello,
Seeing lots of brown spots developing around middle tier leaves. Reddit is telling me I should flush with 15 gallons of water to get rid of salts around the roots. That seems extreme but if that’s the cure I’d like to know more and can I use my tap water (7.1pH 133ppm)?
PH should be around 6.4— that high you can’t absorb all the nutrients—- hence what you are seeing. I never flush, but you can….
Do a couple of water feeds 6.4, a tea feed 6.4, and go back to nutrients at 6.4
Really! a flush?!
To flush what? your feeding is so low, and it is the first week you are giving some.
Your fox farm soil is depleted, and you auto is at peek demand for nutrients, you need to up your feeding.