I've been checking my nitrates at home with an API kit. It shows my nitrates to between 60-80 ppm....problem is I've got no hair, bubble or cynical alge in the tanks. I bought another kit to see if the 1 is was using as bad. Got the same results. So I took a sample with me to work so I could stop by on my way home..mind you it was 95° outside today. I stopped and had it tested. It shows my nitrates at 5ppm. How's that possible? Does sitting for 13hrs in the heat change the test results? I testes again tonite..same as before between 40-80 ppm.


