70's natureboy
Well-Known Member
I went to school before the "new math". In my world 800 ppm is .8 EC. No worries though, there will always be confusion on that stuff. The plants will be the judge if they are happy or not.Are you sure you are growing mj? I agree 2.3 is high-ish but 0.8EC (400ppm) in that stage is extremely low.