I have noticed my betta, Fistandantilus, isnt looking the way he usually does and I suspect fin rot. Here is a before and after pic. Any ideas on what to do?
I know the picture is blurry, but it shows his tail and coloring fairly well.
Another before pic.
This was taken yesterday. Huge difference. Tail is a brownish color and very thin. Not sure what to do to fix/help it.