把水蛭养活并不难,要养出好效益却不易。水蛭原本生活在自然环境中,人工养殖时,若小环境小气候不予配合,生长必将受阻。缸养、小池水水体养殖,绝对形成不了效益。新建水泥池,其池体的碱性物质需经过长时间的淡化后才能投入种苗;但我们一般也不主张建水泥池养殖,因为水泥池不利于生物链的匹配与平衡。新建的养殖池,也不能一次性就投足种苗,只能待养殖池总体环境条件逐步趋向食物链综合平衡以后,才能逐步加大投种量,更不能机械性地认为每平方米、每立方米可投 Leech feeding is not difficult, it is not easy to raise good benefits. Leech was originally living in the natural environment, artificial farming, if the small climate does not cooperate, the growth will be blocked. Cylinder raising, small pond water body culture, the absolute can not form a benefit. New cement pool, the pool of alkaline substances after a long period of desalination before they can invest seedlings; but we generally do not advocate the construction of cement ponds, because the cement pool is not conducive to the matching and balance of the biological chain. Newly built aquaculture ponds can not be used for seedlings only once. Only after the overall environmental conditions of aquaculture ponds gradually converge on the comprehensive balance of the food chain can we gradually increase the amount of investment. Moreover, we can not mechanically consider that the per square meter, M can vote