1. The water temperature in the aquarium can be raised appropriately. Generally, when the water temperature is above 30 degrees Celsius, the cucurbit will fall off the surface of the fish and the fish will recover slowly. Heating treatment is the simplest and most effective treatment method, and the damage to colorful angelfish will be relatively small.
2. You can also use formalin or malachite green, sprinkle it in an aquarium, and let the colorful angelfish take a medicinal bath, and the treatment effect is also very good.
3. You can also use ultraviolet germicidal lamp to kill melon insects. Aquariums or containers are equipped with ultraviolet germicidal lamps. Put colorful angelfish in it, and don't shine light directly on the surface of the fish. Connect two aquariums. When there are colorful angelfish in one aquarium, just turn on the germicidal lamp in another aquarium.
In order to prevent the colorful angelfish from suffering from this kind of small melon disease with high mortality. In the daily feeding process, we must take precautions to prevent them from breeding.