How long has your tank been set up? Did you have fish from the start?
api master test kitWhat test kit are you using?
What's the nitrate level in your tap water?
Have you added any additives to the tank apart from dechlorinator?
Did you use any seeded media from another filter?


but what about the abscence of the nitrite? and the steady level of ammonia at 0.25 ppm all the way through ?
Karl.
how long is it taking for the ammonia to lower from 2.0 ppm to 25 ppmit was at 2.0 ppm as i heard people cycle their tanks with 0.25 ppm and others at 4.0 ppm so i went half way.
Karl.