I feel dumb, but I've never had the problem before. I always test, but never had anything but 0.
I had a fish die (and disappear so I wasn't able to get him out), so I assume that is the cause for the spike.
I am doing daily 1g changes (13g tank) and I replaced my carbon and phosguard. I did also replace my sediment filter pads which may have temporarily reduced my bio control a little.
After 3 days it went up from .5 to 1.0, so I think I'm missing something simple.
I had a fish die (and disappear so I wasn't able to get him out), so I assume that is the cause for the spike.
I am doing daily 1g changes (13g tank) and I replaced my carbon and phosguard. I did also replace my sediment filter pads which may have temporarily reduced my bio control a little.
After 3 days it went up from .5 to 1.0, so I think I'm missing something simple.