1 鲤鱼,鲫鱼 是水底“清洁工”。它们栖息在水体底层。摄食底部的残饵和腐殖质,充分利用水体中残余的有机物和微生物,能有效减轻池底有机物的腐化分解,减少鱼病发生。2 鳜鱼,乌鳢,加州鲈 是水体中的除杂“先锋”。它们性情凶猛,能大量摄食野杂鱼、小虾等。适当套养三 1 carp, carp is underwater “cleaners.” They inhabit the bottom of the body of water. Feeding residual bait and humus at the bottom, make full use of residual organic matter and microorganisms in the water body, which can effectively reduce the decomposed organic matter in the bottom of the pool and reduce the occurrence of fish diseases. 2 Anchovy, jackal, California perch are impurities in the water “pioneer.” They are ferocious, can eat wild fish, shrimp and so on. Proper three sets of support