How to rescue fish from toxic water? Three methods for treating fish

Excess dissolved oxygen toxic water syndrome: Excessive dissolved oxygen in the water body can cause eutrophication of the water, leading to gas bubble disease and various other conditions in fish. Many small bubbles adhere to the fish gills, causing the fish to float up or lose balance when swimming. There are white bubbles in the fish intestines, or relatively many bubbles are attached to the fish body surface, fin rays, and gill filaments, and the fish body floats on the water surface; in severe cases, it can cause fish to die in batches. When bubbles appear in the fish pond, first, clean water should be injected quickly while discharging part of the pond water; fish with mild symptoms can expel the bubbles in clean water; second, splash 400-600 grams of table salt per mu of water surface; third, quickly transfer the fish to a new water environment.

Excess metal toxic water syndrome: This disease mostly occurs in newly opened fish ponds, and is more common in fry and fingerlings. Because the pond water is polluted by heavy metal salts and other substances, or lacks certain nutrients (calcium and vitamin C, etc.), the fish nerves and muscles are stimulated and deformities appear. The diseased fish body bends, the operculum is sunken, or deformities appear in the upper and lower jaws of the mouth and fin rays, etc. (also called bent body disease). The diseased fish grows slowly, becomes thin, and dies in severe cases. Because adult fish generally do not develop this disease, newly opened fish ponds are best used to first raise adult fish for 1-2 years, and then release @#@233@#@ fry or fingerlings. Fish ponds with outbreaks should frequently change the water to improve water quality, and at the same time feed nutrient-rich feed to quickly strengthen the constitution of the diseased fish.

Water body hypoxia toxic water syndrome: If the oxygen in the water drops to the point where it cannot meet the minimum physiological needs of fish, it can cause the fish to suffocate and die. If not rescued in time, it will cause mass death of fish. In response to this situation, the stocking density should be properly controlled, and when the weather is muggy, bait feeding and fertilization should be appropriately reduced. During winter pond clearing, part of the sludge at the bottom of the pond should be dug out to prevent excessive sludge at the bottom from affecting water quality. High-yield fish ponds should be equipped with aerators and aerate regularly. Feeding should achieve fixed quality, fixed quantity, fixed time, and fixed location, and leftover feed in the feeding area should be removed in time. If diseased fish are found floating at the surface, new water should be injected immediately, and the water inlet should be covered with reed mats or wooden boards so that the water does not directly rush into the pond bottom and stir up the sludge. When necessary, the fish can also be transferred to another pond, and chemical oxygen generators can also be used to increase oxygen.