A quick background: I'm cycling my 10G with fish because I up and decided one day that I wanted a fish tank but knew nothing about testing water and ammonia, nitrites, and nitrates. Classic newbie mistake I guess. Anyway, I'm 5-6 weeks in it now. Yesterday my readings were Ammonia 0, Nitrites .5-1.0, Nitrates 0. I done about a 10% water change. Today Ammonia 0, nitrites 1-2, Nitrates 0. I done about 40% water change today. After 5-6 weeks in, where are the nitrates? I thought I would have some by now. Is is because I have to do so many water changes and it's just taking longer?