in my baby oscar tank he's finally down to zero ammonia. I actually had it ther eonce before but then I had a total filter failure and most of the bacteria seemed to die. it spiked to about 2ppm and is now back to zero again. :woot: So I just took drippings from its filter to try and spur the bacteria growth in my other hex with my 2 gouramis. the ammonia in the gouramis tank is in the .5-1ppm range I can't wait till that one falls to zero. Today I have to go out and buy a new nitrite test set since it appears that my bottle got overturned and leaked all the liquid out.