If 0ppm of ammonia is supposed to match the yellow color on the chart, my ammonia level has been .25 from day 1 because it is greener than that. Anyways, I'm 1 week into cycle today and ph, ammonia, nitrite, and nitrates read 8.0, .25, 0.0, and 0.0 roughly. Using api test kit. Tank is 50gal, 2 clown fish, pellets for feeding, used bottle of that dr tommy bio stuff, 20lb of dry live rock, hang on filter with this white rocks inside, live sand, 2 heaters, and no light. Do my levels seem normal? If not, what should I do? I've read that my tank would cycle better with ammonia at 3 to 5ppm but also read that ammonia above .25 is toxic to fish. I guess I'm right at the threshold but I really don't know. And I was thinking my nitrites would be going up a little by now.