Well, it was for about 20 hrs on the main tank, and then I place it on a QT tank with a bubbler.Do you have it in a QT by itself or is it in the main tank with other fish?
Thank you!In my experience it takes time to spread from one to another, use a bucket, a bubbler you don't mind turning blue(depending on treatment) and use a treatment. Goldfish are coldwater. =]
Ps, heat accelerates diseases unless 86* I've heard, and 50% waterchange daily.