ph in soil 6.2-6.8..... shoot for 6.5. ppm can range with plant size needs and fertilizer brands.... hydro I always liked 5.8 but 5.6- 6.0 is a good range to keep in
Probably not... How old is the plant. What fertilizer are you using? Is it in soil? My water comes out of the tap at 15ppm some have water up in the 100s. Generally in soil we do not test ppm