In fact, people also have a bullish name, called: lice. The water quality requirements of water lice are very high, and it is difficult for water lice to appear in some polluted waters. Because of its excellent nourishing performance, the water louse is also called water ginseng, which is used to make soup, stir-fry, soak wine and make various dishes.
Although lice are harmful to fisheries and have an impact on water ecology, as a part of the biological chain, they actually exist for a reason. They can purify water and eat some rotten sites, plankton and so on.
Ticks are mainly carnivorous, and can also be used as phytophagous and saprophytic bait, especially good at catching small organisms, organic matter and aquatic plants in water. It has a great influence on the larvae of small fish, shrimp and frog in the pond. Although it can eat some rotten food to purify the water quality, it is still very harmful to the cultured ponds and poses a strong threat to young creatures.