I haven't noticed any flicking or rubbing or any excess slime on the fish - just the clamped fins and the hard breathing.
I probably did lose most or all of the beneficial bacteria because of the filter mishap. Also, strangely the water flow through the new filter cartridge doesn't seem to be...
Hi,
A few days ago my Whisper hang on filter got jammed up or something and I had to go and buy a replacement cartridge. Everything was fine in my tank until then.
About a day later I noticed that I had an ill kuhli loach. It was laying on the bottom of the tank and I knew it was about to die...