High Nitrites and Nitrates 3 months into new tank

[Randy Holmes-Farley]

Wait. Are results from Hanna 782 (High Range No3) also unreliable if nitrites are present? I thought only Salifert has that problem.

It’s not a Salifert issue. It’s a design issue of the method they all use, although the degree can vary. I do not know the exact answer for the Hanna.

 

[certain_code]

Wait. Are results from Hanna 782 (High Range No3) also unreliable if nitrites are present? I thought only Salifert has that problem.

I did not find a true confirmation of this but almost everything I have found makes it seem like any hobby-grade test kit is going to have incorrect Nitrate readings if Nitrites are present. I did not find specifics for Hanna checkers but in my case it was just safer to assume my Nitrates were reading incorrectly since Nitrites were more of my concern anyway.