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> I checked my local water supply report and it said
> nitrate is at 0.05 ppm.
This can vary as well.
> However, my test kit (Tetra brand) reads it at
> about 10 ppm. I have long suspected that this test kit is not very
> accurate. Is this confirmation? I hope the test kit is wrong, it would
> make me feel better, because I'm always battling NO3 in my tanks, maybe it
> is not really as high as I thought? Can someone recommend a better NO3 test
LaMott makes a good one(35-55$). SeaChem is cheaper and not bad for
$(14-25$). Both sell the refills as well.