The ornamental fish has white flocculent material on its body, indicating that it is suffering from saprolegniasis. This disease is caused by saprolegniasis invading the injured part of the fish body. As the bacteria exist in the water, in order to prevent the situation from deteriorating, it is necessary to change the water regularly. This can reduce the density of the bacteria, and can also play a certain role in the recovery of the fish.
Saprolegniasis mainly occurs under low temperature conditions. Although raising the temperature is not enough to eliminate the germs, it can stimulate the fish's body, accelerate its metabolism, and at the same time improve its resistance, which is helpful to the recovery of wounds and the discharge of harmful substances. Usually, the temperature does not need to rise too high, compared with normal time, an increase of 1-2 degrees Celsius is enough.
Although raising the temperature can stimulate the resistance of the fish, it can also accelerate the reproduction of the bacteria. To prevent the bacteria from continuing to invade the fish, it is necessary to add salt to the tank appropriately. Generally, the concentration of salt is between 0.3% and 0.5%, which can improve the osmotic pressure of water to prevent bacteria from flowing into fish with water, and at the same time reduce the burden of kidney.
Saprolegniasis rely on the above three kinds of treatment is more difficult, or need medication. You can use povidone iodine solution, add 20 mg per liter of water, or soak the sick fish in potassium permanganate mixed saline, or let it take some antibacterial drugs internally, which can have a good therapeutic effect.
