The treatment methods for the fin rot disease of Siamese fighting fish mainly include the following aspects:
Stabilize the water quality: Fin rot disease is usually caused by water quality problems. Therefore, the first step is to ensure that the water quality is clean. Regularly change the water in the fish tank, replacing one-third of the water volume each time, and use an oxygen pump to aerate the water to maintain the stability of the water quality.

Medication treatment:
Yellow powder: Add an appropriate amount of yellow powder (such as furacilin) to the fish tank. Pay attention to avoiding light, and the effective period should not exceed one week. The yellow powder can inhibit wound infection and promote wound healing.
Salt: Add a small amount of sea salt or table salt to the water, which can help sterilize and prevent infection.
Antibiotics: Water-soluble antibiotics such as penicillin and chlortetracycline can be used. Put 10,000 to 20,000 units of antibiotics into each liter of water. At the same time, raise the water temperature by 2 to 3 degrees to enhance the treatment effect.
Adjust the water temperature: Appropriately raise the water temperature. The suitable water temperature for Siamese fighting fish is between 24 and 27 degrees Celsius, and the maximum should not exceed 32 degrees Celsius. Raising the water temperature can help the Siamese fighting fish resist pathogens.
Nutritional supplementation: Increase the feed with a high protein content, such as fresh live baits like tubifex worms, etc., to enhance the disease resistance and tissue regeneration ability of the Siamese fighting fish.
Preventive measures: Keep the water quality clean, change the water regularly, and avoid the excessive aging of the water quality, which may lead to the massive reproduction of bacteria. When using live baits, carry out disinfection treatment to prevent parasitic infections.