I too have this kit.. Nitrates were thru the roof, or so I thought.. Took h2o into the LFS and nitrates arent as high as "that" test showed. I personally, now, visit this place called "the reef" here in indianapolis frequently and bring my water in everytime. Just to make sure my test is ok, but like i said so far nitrates were inaccurate> Everything else, Aok, so far..
jt