kno3 dosing

Hi, My tank has a problem with to low nutrients, It`s a triton core 7 setup with a large fuge. I feed 5-6 times a day and dose aminos every day, but still I can’t get to bump my nitrates up. The tank has gradually gotten worse and worse, It`s more or less impossible to get KNO3 in Norway...

I am trying KNO3 dosing (Spectracide stump remover) since my SPS colors are pale and my Nitrates were consistently 0 before dosing. I've only been doing it a few days, but my tank seems to consume about 2.5ppm/day. I have chaeto growing in the sump. Is the chaeto likely what's using most of the...