There are several methods to treat white frost on goldfish:

1. Use iodophor to wipe off the white frost on goldfish, and then place the goldfish in 3% salt water for disinfection. In about a week, the goldfish will recover;

2. You can take a medicated bath with antibiotics. If hoarfrost only grows on the fins, you can cut off the fins with hoarfrost.

Tip:

When raising goldfish, pay attention to regular cleaning and disinfection of the container in which the goldfish is raised. When changing the water, be careful not to bruise the fish when fishing. Once a goldfish is found to have hoarfrost on its body, the goldfish must be isolated and treated immediately. Prevent infection from spreading to other goldfish, thereby causing the disease to spread.