My 40 gallon is fish-less cycling for over a month now I add 4 PPM of ammonia everyday and it is back to 0 Less then 12 hrs later. My problem is the nitrite levels have gone off the charts for over 2 weeks now I have done a 60% water change and no difference in the reading. My Nitrate levels were around 80 PPM and now are starting to fall around 40 PPM. How are the NitrAte Levels going down but and the Nitrite Levels aren't? Also how long does it take an average tank to cycle nitrites to nitrAte's?
Thanks !!
Thanks !!