Is it normal for the beneficial bacteria to slow down their consumption of ammonia and nitrite? Last time I checked my levels, when my tank was finished cycling for a week or so, my tank was consuming ammonia and nitrite really fast. Now, I just checked out of curiosity because my bio load went up a lot from getting my snail and frog. Ammonia is reading 0.5ppm, which isn't out of the ordinary I guess, but my nitrites are reading over 2ppm! I expected to see none of either :|