cold-water fish with white hair? If cold-water fish has white hair, it needs to be isolated first, suspended feeding, and then treated with the old three methods. If it doesn't work, it needs to be soaked with medicine. This kind of disease is called Saprolegniasis, it is a kind of common disease, cause disease originally a lot of, more than mould a kind. Usually, after the fish is injured, the bacteria will invade from the wound and grow hyphae from it, resulting in white hair on the surface of the fish.
1. Prevent injuries: If you want to prevent Saprolegniasis, you must first avoid fish injuries. Generally, pathogenic bacteria invade from wounds. Usually, the fish should be kept at a controlled density, so that the fish have enough space to move, so as to prevent them from crowding each other, so as to reduce the possibility of injury, and the aggressive fish should be kept separately.
2. Change the water regularly: When the number of harmful bacteria in the water reaches a certain range, it will endanger the health of fish, and the content of harmful bacteria can be reduced by changing the water, so as to prevent diseases. The water is usually changed every five to seven days. Don't change too much water, just a quarter at a time.
3. Keep the water temperature: Saprolegniasis is usually easy to catch in the low temperature season, so if you want to prevent it, you should also pay attention to keeping the water temperature. Maintain the temperature at a high level and control the temperature with a heating rod. Moreover, cold-water fish have a wide range of adaptation to temperature, so they do not need to keep low temperature deliberately.
