The first thing you need to do is to determine the breeding area of the pond when breeding blackfish fry. It is not advisable to breed too many blackfish fry, but it can be divided into several ponds and raised separately, with a pond of about 2-5 acres.

The water depth is about 2 meters, and the silt at the bottom of the pond should not be too much, and the inlet and outlet of the pond must be set up with an escape net to prevent the blackfish from escaping during the breeding process. Before stocking, you need to disinfect the fish pond by sprinkling quicklime on it, and you can also plant a water lily about one meter wide in the pond, which not only prevents the blackfish from jumping out of the pond, but also effectively shades the pond from the sun. Ponds should be selected away from noisy and noisy places, there are sufficient clean and sanitary water sources, there is a good drainage water exchange system.

2, fish seed placement

When choosing fish species are usually bought in the market, although the price of the market are relatively low, but their specifications are not the same, and many times the fish will be subjected to mechanical damage.

So before stocking the fry, the pond must be sterilized with quicklime, or the fry must be sterilized by soaking them in salt water and bleach for about 20 minutes. The stocking density of blackfish should be decided according to various factors such as breeding area, feeding technology and feed. Generally, up to 2500 blackfish can be cultured in one acre.

3, feed feeding

As long as there has been blackfish aquaculture experience, people know that the blackfish is a very ferocious carnivorous fish, regardless of whether it is live or dead meat, mainly feeding on a variety of small fish and shrimp in the pond.

When artificially feeding the blackfish, it must be fed at regular intervals every day, at least twice a day at 10 am and 3 pm. Generally a week after stocking, the fish species will begin to the surface of the water to start grabbing food, in the blackfish feeding time should also carefully observe the blackfish feeding situation, if the blackfish near the food is relatively small or the blackfish grabbing food between the time is not intense, it will represent the majority of the blackfish have eaten enough, you can stop feeding.

4, feeding management

The blackfish's appetite is very large, so it also has a lot of excreta, so it will soon make the water in the pond become more and more fat, resulting in a large number of zooplankton breeding breeding.

Cause the pond began to lack of oxygen, so in the breeding time to pay attention to observe the changes in the amount of dissolved oxygen in the water, if the phenomenon of lack of oxygen occurs, be sure to increase the oxygen in a timely manner, if the situation is more serious, it is necessary to take the water surface sterilization method, in the pond side of the 3 meters or so of the place splashing trichlorfon. Although the blackfish's resistance to disease is very strong, low morbidity in the breeding process, but in the fall, there is no correct management, it will still lead to blackfish disease, so we must always pay attention to the growth of blackfish in this time, and find abnormalities, we must make timely countermeasures.