a raised white bag on the fish indicates that it is infected by parasites. This kind of disease can't be cured by changing water, warming up and adding salt. You have to fish out the sick fish, use a needle to break the bag on the body, take out the parasites inside, and apply a little yellow powder to the wound.
1. White spot disease: White spot disease is the most common parasitic disease. The pathogenic parasite is called Ichthyophthirius. It usually infects fish during low temperatures. After the disease, white spots appear on the body, and more and more. Want to treat is also very simple, as long as the appropriate temperature, water temperature in 28 C, small melon insects will be eliminated.
2. Trichodina disease: Trichodina usually lives in the gills and nostrils of fish. When the number is small, there is no performance. Too much will cause the fish to become thin, poor feeding, slow swimming and difficult breathing. For treatment, soak in 2-3% saline water for 5-10 minutes daily.
3. Gyrodactylosis: Gyrodactylosis is parasitic on the body surface and gills of fish. After the disease, there will be white mucous membrane and lose luster. The disease is treated by immersion in trichlorfon solution, 10 mg per litre of water, for 15-20 minutes, and recovery in a few days.
4. Filariasis of mouth: Filariasis of mouth mainly occurs in small fish tanks and small fish ponds, mostly at low temperatures. When the illness is mild, it can be treated with 2% saline immersion or potassium permanganate immersion.
