I have been dosing nopox for a couple months. I was dosing 12ml daily for a 150 gallon total water volume system. 3 weeks ago tested nitrates with Salifert and got 0 so I cut dose down to 6ml for a week tested still 0 nitrates. For the past week I have dosed 3ml daily and tested again last night with Salifert and Red Sea test kits and got 0. My question is should I stop dosing all together for now or what to cut back to dosing? I have no algae in tank besides maybe a little of some type of bacterial algae underneath my frag racks. I also have a fuge and chaeto and dragons breath macros are growing like crazy.