There are three ways to treat water mold in fish tanks:

1. Add potassium permanganate, and be careful to control the dosage. Not too much, otherwise it will cause harm to the goldfish.

2. Add sea salt. Sea salt can disinfect and sterilize. Be careful not to add edible salt.

3. Raise the water temperature. Water mold can usually only survive at low temperatures. Raising the temperature to about 30 degrees can kill water mold.

Tip:

When it is found that a goldfish is suffering from saprolegnia, the goldfish should first stop eating for 1-2 days, and then change the water in the fish tank. Note that when changing the water, do not pour tap water directly into it. The tap water should be allowed to stand for 1-2 days, waiting for Change the water after the chlorine has evaporated. In addition, the fish tank must be oxygenated to make the goldfish more active.