First, the clear pond. After 2 to 3 months of cultivation of fish ponds, water quality has generally aged, natural foods have been reduced, and harmful gases such as hydrogen sulfide and pathogenic bacteria have increased. After the fall, the fish should be transferred to ponds that have been sterilized in the clear ponds. Where water and fish ponds are difficult to turn around, all the fish can be transferred out of stocking, and the original pond can be disinfected with 75 to 100 kg of lime per acre. The water can be fertilized in accordance with conventional methods until the disappearance of the medicine. The fish species is turned back to ensure the purification of the living environment. Second, the division management. Fish species should be properly reared according to different specifications, so that the specifications for the fish species returned to the pool are the same. Because large-scale fish species have large food intake and strong grab power, if small-scale fish species are stocked at the same time, the fish will not receive enough food and their physical quality will decline. Fishes over 16 cm in size can be placed in adult fish ponds. Smaller fish species need special pools for cultivation, so as not to cause food shortages, and stronger and weaker weaker extremes occur. Third, regular patrol pool. During the cultivation of the fingerlings, it is necessary to insist on daily observation of the fish’s food intake and growth status, pay attention to changes in water quality, change new water frequently, and add new water once a week. And often clean the food market, remove the residue leftover bait in time, half a week in the food market with bleaching powder spilled 0.5 kilograms of water, regular feeding baits, preferably twice a month, each feeding 3 consecutive days, found sick fish , Dead fish should be removed in a timely manner, and at the same time diagnosed and given drug control. Fourth, reasonable and thin. The cultivation of large-scale fish species in the autumn is an important part of raising the survival rate of winter fish species. It should be reasonably diluted according to the size of the water surface and the depth of the water body to promote the growth of the species. For ponds with a depth of 1.5 meters, a total of 4000 to 6000 fish species of 7 to 8 centimeters in length are stocked per acre, and the body length can reach 13 to 17 centimeters by the end of the year, which is of great significance for raising the aquaculture income. Gutta Percha,Dental Endo Plugger,Dental Gutta Percha,Gutta Percha Points Hebi Tianchi Trading Co., Ltd , https://www.hebitianchi.com