一、龟鱼混养可净化水质龟鱼混养池中鱼类可利用龟的残饵,不需投喂或很少投喂鱼饲料,既充分利用了饵料资源,又避免了水质污染,达到净化水作用。二、龟鱼混养可增加水体溶氧龟类栖息于池底,又常在水面或岸边活动、觅食;而鱼类则活动于水体的中、上层。两者共同活动的结果加速了 First, the turtle polyculture purify water quality turtle fish polyculture tank can be used turtle bait, without feeding or rarely feeding fish feed, not only make full use of food resources, but also to avoid water pollution, reaching Purify water effect. Second, turtle polyculture can increase the water dissolved oxygen turtle habitat in the bottom of the pool, and often in the water or shore activities, feeding; and fish are active in the water body, the upper. The result of both activities accelerated