1, reason: There is white dot on 7 colour angelfish body, the likelihood is to get white dot disease, because the main symptom of white dot disease is fish body appears white dot, and the main reason that causes white dot disease is water temperature is too low. The main pathogen of white spot disease is Ichthyophthirius, Ichthyophthirius can only survive in the water temperature below 25 C, so it is very easy to cause white spot disease if the water temperature is too low.
2. Treatment: The breeder can raise the water temperature to 30 ℃, but the temperature cannot be raised suddenly. The breeder needs to raise the temperature to 30 ℃ slowly. When the water temperature is raised to 30 C, the breeder can sprinkle 2% salt in the fish tank. If the white spot disease is serious, the breeder can raise the temperature and sprinkle the white spot net, or use the white spot net for medicinal bath. Whether sprinkling medicine or salt, oxygen is needed in time to ensure sufficient oxygen in the fish tank.
1. Reason: The white spots on the colorful angelfish may be saprolegniasis, because the early symptoms of saprolegniasis are white spots, but later there will be a large area of white spots. Saprolegniasis is mainly a bacterial infection caused by poor water quality or external injuries.
2. Treatment: The breeder needs to raise the water temperature to 30 ℃ first, and then change the water frequently, preferably once every other day, and the amount of water changed each time should be controlled at one third of the total amount of water. Finally, it is necessary to soak the fish body with drugs every day. The drugs that can treat Saprolegniasis include methyl blue, malachite green solution, yellow powder and oxytetracycline. According to different drugs, the time of medicinal bath is different, about 10-20 minutes. Keep enough oxygen in the fish tank during treatment.
