How to clear the wild fish in the pond

Q: Qiu Deguang, Cengu Town, Xinghua City asked: There are 2,000 mu of water. Because there are more wild fish in the pond, it was formerly mixed with river crabs, green prawns and squid. Recently, it has been found that the carp in the pond is eating more severely. This year, I would like to have polyculture with fresh shrimp and crabs. How do you clear the wild fish in the pond?

A: You can use tea seed cake to remove small trash fish, but the amount can not be too large, otherwise it may affect the production of fresh shrimp.

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