Reply To: Fin rot? Help please
My guppies just got fin rot. First they had white puffy “fungus” on them and some of them had only one or two tiny white spots on them. My one female now has fin rot caused by columnaris. She has no white spots or anything other than receding fins. Since it is caused by a bacteria, an antibiotic or copper sulfate should do the trick. I imagine your goldfish probably had the same or a similar problem. I would be concerned about an internal bacterial infection in your catfish. Just keep your eye on him. here is a WONDERFUL page about fin rot (the other links on other diseases are also very helpful!)
http://freshaquarium.about.com/cs/disease/p/finrot.htm