My roommate has a tropical tank and it's been cloudy for weeks. I've tested for nitrates and they were in toxic range. I've been doing daily 25% water changes and most fish seem okay. The water quality is some improved.
I put a zebra in a hospital tank b/c she had some strange symptoms which have advanced:
puffy red gills, unsteady/circular and inverted swimming, floating on top or resting on bottom most of time. I'm not aware whether she has eaten. This has gone on for at least 3 days. Can't seem to diagnose this. I thought it might be nitrate poisoning b/c I almost killed one of my orandas a few months back as he had some of the same symptoms. Fortunately for me he recovered and I have been much more vigilant.
The Zebra looks a little better in terms of red gills, but we're wondering how long to let this go on and/or whether there is something else we could do.
I am using Melafix. Stress coat. 2 gal container w/mini BioWheel and a heater set at about 78 deg.
Thoughts and suggestions will be much appreciated.