Currently I am dosing PPS Pro for my 22g Tank (2 T5 Tubes, 2l DIY CO2). As I cannot get KNO3 in Singapore, I use CaNO3 instead. Since KNO3 is not used, potassium is mixing and what should i do for that?? I do dose K2SO4 as per PPS pro recipe. Do I need to dose additional ferts to get Potassium? Please help and thanks in advance .
Sorry I couldn't provide my water parameter as I do not have any kind of test kit.