First, strong seedlings under the pond. In front of Xiatang, choose a strong physique, neat specifications, swimming and lively seedlings and fish ponds, in order to increase the survival rate.
Second, safe under the pond. Before the fish ponds under the pond must be strictly checked whether the pond has completely failed, you can try to put dozens of fish into the cage in the pond, observe a day and night, see the fish fry activities, eating conditions are abnormal, such as the emergence of anxiety, floating head struggle The phenomenon of chaotic travel around shows that there are still drugs in the clear pond and should wait for its efficacy to disappear completely before putting the seedlings.
Third, "harmless" pond. Because the fry is small, the ability to resist the enemy’s harmful organisms is weak. In order to ensure the safety of fish fry in the pond, the fish must be raked in 1 to 2 times with the dense mesh net to remove the harmful organisms that may harm the fry, such as harmful insects, frog eggs, pupa and wild fish in the pond.
Fourth, timely ponds. Premature fry is too weak and its vitality is poor. At this time, the survival rate of Xia Tang is not high. Conversely, too late fish fry have been absorbed by the yolk sac, resulting in deterioration of their physique and death. Should be hatched in the fry for 4 to 5 days, it is the best time to freely swim and feed the food in time.
Fifth, sunny pond. It is best to choose the pond at noon on a continuous sunny day, when the fry adapt to the fastest, the survival rate is also the highest.
Six, eat the next pond. On the afternoon of releasing the seedlings, 2 yolk fry were fed with 2 cooked egg yolks, wrapped in gauze, crushed, and washed into egg yolk to feed the fish. In the morning, one more meal was fed and the egg yolk increased to 4 and it could emerge at noon.
Seven, the same batch of ponds. Each time the fish in the pond must be the same species of fish fry raised in the same batch, it is strictly forbidden that the fish fry with different size and size of the fry and different species will be mixed, otherwise the fry survival rate will be seriously affected.
Eight, adjust the temperature down the pond. For fry from other places, especially fish fed with nylon bags, the nylon bag should be opened first, the bag should be put into the pond, and some pond water should be put in place, due to the large temperature difference between the bag and the water in the pond. Dozens of minutes later, when the temperature inside and outside the bag is basically the same, the seedlings are put into the pool.
Nine, see the wind down the pond. When the fish is under wind, it should be in the upper tuyère. Avoid seedlings in the downwind position to prevent the fry from being blown to the pool by the wind.
Ten, disinfection of the pond. When using fish seedlings, try to use salt and potassium permanganate solution to disinfect the pond.
Second, safe under the pond. Before the fish ponds under the pond must be strictly checked whether the pond has completely failed, you can try to put dozens of fish into the cage in the pond, observe a day and night, see the fish fry activities, eating conditions are abnormal, such as the emergence of anxiety, floating head struggle The phenomenon of chaotic travel around shows that there are still drugs in the clear pond and should wait for its efficacy to disappear completely before putting the seedlings.
Third, "harmless" pond. Because the fry is small, the ability to resist the enemy’s harmful organisms is weak. In order to ensure the safety of fish fry in the pond, the fish must be raked in 1 to 2 times with the dense mesh net to remove the harmful organisms that may harm the fry, such as harmful insects, frog eggs, pupa and wild fish in the pond.
Fourth, timely ponds. Premature fry is too weak and its vitality is poor. At this time, the survival rate of Xia Tang is not high. Conversely, too late fish fry have been absorbed by the yolk sac, resulting in deterioration of their physique and death. Should be hatched in the fry for 4 to 5 days, it is the best time to freely swim and feed the food in time.
Fifth, sunny pond. It is best to choose the pond at noon on a continuous sunny day, when the fry adapt to the fastest, the survival rate is also the highest.
Six, eat the next pond. On the afternoon of releasing the seedlings, 2 yolk fry were fed with 2 cooked egg yolks, wrapped in gauze, crushed, and washed into egg yolk to feed the fish. In the morning, one more meal was fed and the egg yolk increased to 4 and it could emerge at noon.
Seven, the same batch of ponds. Each time the fish in the pond must be the same species of fish fry raised in the same batch, it is strictly forbidden that the fish fry with different size and size of the fry and different species will be mixed, otherwise the fry survival rate will be seriously affected.
Eight, adjust the temperature down the pond. For fry from other places, especially fish fed with nylon bags, the nylon bag should be opened first, the bag should be put into the pond, and some pond water should be put in place, due to the large temperature difference between the bag and the water in the pond. Dozens of minutes later, when the temperature inside and outside the bag is basically the same, the seedlings are put into the pool.
Nine, see the wind down the pond. When the fish is under wind, it should be in the upper tuyère. Avoid seedlings in the downwind position to prevent the fry from being blown to the pool by the wind.
Ten, disinfection of the pond. When using fish seedlings, try to use salt and potassium permanganate solution to disinfect the pond.
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