Fried scales are characterized by swelling on the surface of diseased fish, some scales expanding outward like pinecones, edema at the base of scales, and accumulation of translucent or bloody exudates inside, which makes scales stand up. When you press lightly on the scales, a lot of watery liquid will gush out from the base of the scales, and the scales will fall off. Sometimes accompanied by fin base, slight skin bleeding, abdominal swelling and other symptoms.
Tropical fish are often sick because of frequent water changes, which also shows that there are bacteria in the fish tank. Change the water as soon as possible after discovery to ensure the water quality is clean. It is also necessary to fish out sick fish and raise them in isolation to avoid bacteria infecting other fish.
Sick fish should be soaked in a mixture of 1% salt water and 1% baking soda for ten minutes every day. Stick to the medication for about a week until you are cured.
Adult fish have been artificially raised for many years, and their nutrition is unbalanced, especially the lack of necessary vitamin supplements, which leads to the decline of disease resistance of scales. Don't raise fish at high temperature and high salt for a long time, which will easily lead to water quality corruption and bacterial growth.