Good evening,
The picture is the best I could do. I have been treating my main tank since sunday with the quarantine trio because I have been losing my live bearers about a fish a week (sometimes 2 or 3) for 2 weeks now. Since starting the meds I have lost 3 guppies/endlers The tank the fish is currently in for the photo was short notice and has been cleaned since. The female was fine this morning but when I got home, I saw that she had a patch of white fuzz on her. A google search says that this is fungus (not sure how it got to this point with the meds in there but regardless) but what I am not sure about is that why is it only affecting my livebearers? I thought they might have been old at first but the fuzz confirms that their deaths were not natural. I also have a female betta, blue kerri tetras, kuhli loaches, a bristle nose and otos in the 40 gal tank. I checked my water last night and found nothing amiss. I am concerned for all my fish at this point and don't know what else to do.
I was reading some online info that said I need to do several major water changes and meds?
Please advise