Seachem Dosing calculator question
Alrighty so I'm trying to increase my nitrates from 0 to around 20 ppm using seachem nitrogen. Using seachem's dosing calculator, it says to divide the result by 5 if you're calculating using nitrate levels rather than nitrogen, which I am doing. And so with a 25 gallon tank going from 0 to 20 ppm it requires 25 capfuls of seachem nitrogen, but when you divide by 5 you only need 5 capfuls? So I dosed 5 capfuls and by next morning my nitrate readings didn't change. In short, I'm not understanding how the factor of 5 works and I want to make sure I dose the right amount.