I got home today, and spotted my angelfish had ruptures in their fin. I have a picture of him a few days ago where it wasn't, so it's fairly recent. None of the other fish in the tank seem affected (2 angels, 1 redtailed shark, 9 dwarf rainbows).
I did a 50% water change yesterday, and there's no nitrate nor nitrite in the water, pH is normal, temperature is at 28 degrees.
Any idea what has happened?
I did a 50% water change yesterday, and there's no nitrate nor nitrite in the water, pH is normal, temperature is at 28 degrees.
Any idea what has happened?
