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[Keepers_girl]

I believe that my guppy has cotton fungus on its back. I am treating with aquarium salts and "Mela Fix". Today she refuses to eat and it is our second day of treatment. The fungus is getting bigger, does anyone know how long it takes to go away? When should we get really worried about her :?

Menagerie did mention it could be bacteria and from what I could understand the "Mela Fix" can treat either.

 

[Menagerie]

If it is fungus or bacterial, I would treat with something stronger than Melafix.
I'm not feeling on top of things today, but take a look at these charts and see what they recommend:
http://www.aquatronicsonline.com/hobbyist/hobbyist3.htm
http://www.aqualink.com/disease/sdisease.html#ich
http://fish.mongabay.com/diseases.htm
http://www.everythingfishy.com/med_info.html
http://www.wetwebmedia.com/AqBizSubWebIndex/fishdisho.htm
http://www.fishpondinfo.com/health.htm