[HumbleFish]

Originally Posted by ThRoewer

I try to limit it to one prophylactic bath per fish, unless they show symptoms of an infection that requires further treatment. So far no fish actually needed a repeat treatment.

Would love to read more about your formalin regimen, if there is a thread or something on it. Do you think one formalin bath is enough to eradicate brook/uronema, so long as the fish is placed in a "clean" QT afterwards? How about velvet?