I'm seeing signs of K deficiency in my tank. Several plants, including crypts, ludwigia, anubias, and HC have yellowing leaves with tiny holes.
The tank is a 180G. I'm dosing 2 tsp KNO3 and 1 tsp KH2PO4 3 times weekly. My understanding is that I don't need to add supplemental K with these amounts. Should I be adding K? Or could this be a different problem?
The tank is a 180G. I'm dosing 2 tsp KNO3 and 1 tsp KH2PO4 3 times weekly. My understanding is that I don't need to add supplemental K with these amounts. Should I be adding K? Or could this be a different problem?