Planted Tank Enthusiast
Join Date: Nov 2008
Location: Morgan Hill, CA
K2S04 dosing when not dosing KNO3
I don't dose KNO3 because my nitrates are 50ppm out of the tap, and I don't have enough growth to drive 'em down much. I dose K2SO4 at the same rate as KH2PO4 (amount varies by tank depending on lighting an CO2).
How much K comes from KNO3, and is my K2SO4 dosing making up for it, or should I dose more? I ask because I think I'm seeing some signs of K deficiency, but I'm not certain (old anubias and ludwigia leaves yellowing, getting holes, and decaying leaf edges).