1. Cause: The fish just bought was not disinfected, and the fish carried Ichthyophthirius bacteria, which did not break out in full swing at that time. The naked eye could not observe it, and the Ichthyophthirius bacteria were not eliminated in time, which led to the outbreak of white spot disease in the red and green light fish, and white spots appeared on the body.
2. Treatment method: Immediately raise the water temperature and keep the water temperature at 28 ℃, which can directly destroy the breeding environment of Ichthyophthirius. Then add salt and methyl blue, which can effectively kill Ichthyophthirius bacteria.
. 1. Reason: The water quality is usually neglected. The fish stool and residual food in the fish tank are not cleaned up in time, which will breed a large number of bacteria in the water. At this time, if the water is not changed regularly, the bacteria will erode the fish body, and white spots will appear on the body of the light fish.
2. Treatment method: Change the new water immediately. The new water should be dried to ensure that there is no ammonia and chlorine. Change the water once every two days, and change one third of it each time.
. 1. The reason is that the water temperature is not stabilized in time during the seasonal alternation, and cold water is poured directly when the water is changed. When the water temperature difference exceeds two degrees, the red and green light fish will easily suffer from white spot disease, and white spots will appear on their bodies.
2. Use the heating rod immediately. It is better to raise the water temperature to 28 ℃ and keep it, and then sprinkle methyl blue for sterilization.
