一、改善池塘环境过去的鱼种池一般都偏小偏浅,使鱼种经常发生浮头现象,特别是后期几乎天天浮头。这样不仅抑制鱼种生长,而且影响水质。因此,要改善池塘环境,使其水深达到2～3米,面积增至3000～5000平方米,同时配备增氧机(每667平方米0.5千瓦)。在此条件下,只要排灌水方便,投饵施肥 First, to improve the pond environment In the past, the fish ponds are generally small and shallow, so that fish often floating phenomenon occurs, especially in the late almost floating head. This will not only inhibit the growth of fish species, but also affect water quality. Therefore, to improve the pond environment, the water depth of 2 to 3 meters, an area increased to 3000 to 5000 square meters, at the same time equipped with aerator (every 667 square meters 0.5 kilowatts). In this condition, as long as irrigation and drainage water convenient, feeding fertilization