ganjaluva2009
Well-Known Member
Below that you lack Nitrogen (N) uptake.
Above that you lack Potassium (K) uptake.
I don't believe most hydro growers actually KNOW that fact.
Ill be the first to admit that i didnt know that...i mean i know low/high ph produces lock outs, but i didnt know the specific ones....learn something new everyday...ganja