So, like I said I did the 50% and 30% water change last night. This morning my nitrites were the same color in my test. Let's say they were at 4.0. A 50% in theory (according to posts in the forum), would reduce it to 2.0, and then a 30% would reduce it further to 1.4ppm. This would be my confusion, as the nitrites have not dropped, the fish are great and the water is fine. That being said, I have not cleaned the inside of the tank walls during this, and when I removed/filled water, I noticed pieces of waste (or whatever) mixed in the substrate (yes, the substrate was initially cleaned good). I since have left that to settle/filter through the filter to the bio-wheel, and cycle and cycle over again.
Any reason for the nitrites at the same level?
Thanks
depends - when did you test after the changes ? it does build up again very quickly when the bacteria have not sufficiently developed, as said by star rider. I also agree you should test for nitrate as well, so as to monitor your progress through cycling at any rate.