My ammonia has been dropping now for the past week or so. I was at 8ppm, you believe that, wow that was high. It is now down to .5ppm. My nitrites are still reading zero though. This is a relatively new tank and it hasn't cycled yet. I am using fish to cycle even though I know I shouldn't have. My question is, at what point will my nitrites begin to rise? It should be time for them to begin showing up shouldn't it?