1. Reason: The goldfish may suffer from white spot disease, and the main reason for this disease is that the water temperature is too much or the temperature difference is too large. This disease mostly occurs in spring and autumn. If the temperature difference is too large at this stage, it is easy to cause white spot disease.

2. Treatment: As mentioned above, white spot disease is mainly caused by poor water temperature or low temperature difference. Therefore, if breeders want to treat white spot disease, they should raise the water temperature to 28 ℃, which can not only speed up their recovery, but also inhibit the growth of small melon worms. Then use Baidianjing to take a medicated bath for sick fish, once a day, for 20 minutes each time, and you can recover after sticking to it for one week.

1. Reason: Goldfish may also suffer from water mold, mainly because of poor water quality or bacterial infection. When more bacteria appear in the water where they live, they are prone to infection. In addition, goldfish are prone to bacterial infection after being injured.

2. Treatment: Breeders need to isolate diseased fish first, because water mold is contagious to some extent. If not treated in time, it may infect other fish. After isolation, breeders need to clean up the white hyphae on their bodies first, and finally use potassium permanganate to give sick fish a medicinal bath.