First, manual removal If there are not many green algae in the fish pond, it can be removed manually. Generally, it is enough to salvage the green algae in the pond with nylon nets. The green algae can be used as feed for chickens, ducks and pigs. However, the propagation speed of green algae is very fast. If the scale is relatively large, manual removal is time-consuming and laborious, and the effect is minimal.
Second, the reason why green algae grow in fish ponds is essentially because the water body is too fat and the content of nitrogen, phosphorus and potassium in the pond is too high. In this case, drugs can be used for treatment. Soaking copper sulfate in water at ordinary times, or mixing quicklime and bleaching powder with water and spraying the whole pond once a month can not only eliminate green algae, but also disinfect and sterilize.
Third, raising black shell shrimp to deal with green algae, in fact, the best choice is shrimp, shrimp has a strong ability to eat algae, so as long as the black shell shrimp is interplanted in the fish pond, the problem of algae explosion can be solved. It should be noted that shrimp farming must not conflict with fish farming, because some fish will eat shrimp and some shrimp will eat fish eggs, so it is necessary to ensure that the two can get along well.
Fourth, the method of regularly cleaning up most vertical green algae can only be managed for a while. Although it is impossible to keep the green algae from erupting forever, regular cleaning can greatly delay the outbreak of algae. Generally, fish ponds can be washed once every two months in spring and autumn, and the green algae breeding season needs to be washed once a month from May to September to prevent water bloom.