1. Dehydration. Hump hangers have a swollen abdomen, bulging eyeballs, or a condition where the scales stand upright like a pinecone. Usually caused by poor water quality. Solution Immediately improve water quality, supplement treatment such as antibiotics or antibacterials.

2. Gill disease. Hump hanging completely loses appetite and darkens body color. The gills are swollen, preventing the gill cover from closing. Immediately improve the water quality and environment, the salinity of the water must be increased by 0.3-0.5%. If it is caused by parasite infection, the parasite should be treated first; Im 20PPM. Medicated bath it for about 12-24 hours.