So I'm still having a problem with the ammo being too high. I got another tester, API, and its saying the ammo is .50. The last test kit showed .25. I talked with a guy at a fish store and he thinks the ammo isn't giving the bacteria a chance to catch up so he thinks i should stop feeding my fish for a few days. How long does it take for the bacteria to start eating this ammo? When the bacteria "catches up" will the ammo quickly drop to 0?