1. Potassium permanganate medicated bath 1. Reason: The rotten scales of goldfish may be caused by erythroderma, which is caused by bacterial infection. After goldfish suffer from red skin disease, the scales will fall off first, and when it is serious, it will fester.
2. Treatment: Breeders need to use antibiotics to treat them, such as common potassium permanganate. For treatment, put the goldfish in a separate tank and use 2ppm potassium permanganate solution to give the sick fish a medicated bath.
2. Oxytetracycline medicated bath1. Reason: Goldfish rotten scales may also be caused by rotten body disease, and the main cause of this disease is traumatic infection. After suffering from rotten body disease, the body and fish scales will fester.
2. Treatment: The breeder needs to raise the water temperature properly first, and then use the oxygen pump to oxygenate the fish tank. Then give goldfish a medicated bath with 5ppm oxytetracycline until the sick fish shows signs of recovery.
3. Povidone iodine bath1. Reason: The rotten scales of goldfish may also be caused by water mold. After the disease, white hyphae will appear in the body of goldfish. If the later stage is serious, the body and scales will rot.
2. Treatment: Breeders need to transfer diseased goldfish to a separate fish tank first, so as to prevent them from spreading to other fish. Use ultraviolet lamp to sterilize them for 5 hours every day. Finally, use 20ml/L povidone iodine to give sick fish a medicated bath, raise the water temperature and stop feeding.
