1. Reason: When betta fish are infected by parasites, they will suffer from white spot disease, and they can see white spots on them at this time. This situation generally does not recover by itself and needs treatment.
2. Treatment: First isolate the fish with white spot disease. White spot disease is contagious. If it is not isolated, they will infect healthy fish. Then put the diseased fish in a crude salt solution with a concentration of 1% and soak them for 20-30 minutes every day until they recover.
2. Clean up the water quality1. Reason: If you don't change the water for a long time, there will be more impurities in the water, and the germs in the water will multiply in large numbers, resulting in white spots on them.
2. Treatment method: Take out a quarter of the water in the fish tank, and then pour the treated water with the same quality as the original water. In normal feeding, it is necessary to change water once every 3-4 days. If there is a filter in the fish tank, it can be changed once every 1-2 weeks. Then pour out all the water and fish slowly. Soak the fish tank with coarse salt for half an hour to sterilize.
3. Temperature rise1. Reason: In autumn and winter, the temperature in the fish tank will change very quickly. If you don't pay attention to the temperature in the fish tank at this time, the temperature will change suddenly, causing damage to betta fish and causing them to grow white spots.
2. Treatment method: First, put a heating rod in the fish tank to raise the water temperature in the fish tank to 28 ℃ and keep it stable. Then put a thermometer in the fish tank to check the water temperature in the fish tank, so as to adjust the water temperature in real time.