9 seasons for fish growth season

1. Protect against hunger. Fish eat a large amount of food in the high season and should be fed more feed. In order to raise grasses, alfalfa and tilapia, ponds such as bran, pancake, and bean dregs should be fed with fresh bait such as tender grass, plant stems and leaves. Under normal circumstances, the amount of rough material in the daily investment should account for 10% of the total weight of the fish.

2. Anti-null fat. The fertilizing amount of fish growing season should account for 80% of the total fertilizing amount, so every 5 to 7 days, Mushi thoroughly fermented human and animal manure 60 to 100 kg, nitrogen, phosphate fertilizer 2 to 3 kg.

3. Prevent hypoxia. In summer, the large amount of oxygen consumed by fish, combined with the decomposition of large amounts of fertilizers and organic matter, can easily cause oxygen deficiency in the pool water. Therefore, oxygenation should be started in time for the aerator. Where there is no oxygen-increasing facility, new water should be filled at a rate of 10% of the pool water, supplemented with artificial oxygen.

4. Anti-floating head. Because of the hot weather, the water pressure drops and the fish clusters breathe on the water. This is the "floating head." According to the cause and severity of floating heads, targeted measures must be taken. If the floating head is caused by a large amount of feed, it is necessary to increase oxygen and add new water in time. Use 6 kg of quick lime or 2 kg of alum or 2 kg of salt per acre. We also need to clean the water, debris, residue grass, floating foam and so on.

5. Prevent "anti-water". Anti-water is also called water disease, which occurs in sandy bottom clear water ponds that are too long in rain. The main reason is that there are many large zooplankton species such as cockroaches, cladoceras and copepods in ponds, and large amounts of phytoplankton are ingested. In addition, the amount of new water in the pool is excessive, destroying the ecological balance in the pool water. Preventive measures: increase the investment of carp, tilapia, control the number of zooplankton, with crystals of trichlorfon crystal Quanchiposa, combined with artificial fertilization, pool water will soon become fat.

6. Waterproof aging. Due to the high temperature, the pool water will change from slightly alkaline to acidic, which will seriously affect the propagation of natural food, thus inhibiting the growth of fish. Every 15 days, 15 kilograms of lime should be used, and the whole pool should be sprayed evenly.

7. Prevent disease. Fish growing season is also a season of fish disease, especially enteritis, gill disease, water mold disease occurs more frequently. Should be bleached once a day Quanchiposa, or mixed with bleaching powder in the green feed, can also be leeks, garlic smashed, the amount of added into the green feed, but also regularly used lime per acre 10-15 Kilograms spilled on the water.

8. Anti-cyanobacteria poisoning. As the water temperature rises, cyanobacteria multiply, affecting the growth of fish. The toxic substances produced after the death of cyanobacteria can also cause the death of fish. Lime and copper sulfate must be used to kill algae in time.

9. Anti-escape. In summer, there are more storms, fresh water will make the fish become more active, and when the pool water level rises or becomes full, management must be strengthened to prevent fish from escaping.

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