How should ornamental fish be disinfected?

Disinfecting ornamental fish usually targets the tank, filter media, and new decorations, not the fish body directly. For a new tank and equipment, rinse first, then dilute potassium permanganate or chlorine disinfectant such as sodium hypochlorite to wipe the inner walls and soak filter media, then rinse to avoid residue.

Heat-resistant plastic and glass items can be disinfected by boiling.