在高产精养鱼塘中,由于放养密度高,投饵多,施肥量大,水质肥,浮游生物多,有利鱼类生长。同时水中藻类也会快速繁殖,一旦天气突变,藻类出现大量死亡,池水“转水”成臭清水,消耗水中氧气,引起严重的浮头,发生泛塘现象。部分鱼池经及时加注新鲜水和开动增氧机可解救,但难以完全解 In high-yielding and intensive fish ponds, due to high stocking density, more feeding, large amount of fertilizer, water fertilizer, plankton and more conducive to the growth of fish. At the same time, algae in the water will also breed rapidly. Once the weather is abrupt, a large number of algae die, and the water in the water turns into stink water which consumes oxygen in the water and causes a serious floating head and pan-pond phenomenon. Some fish ponds can be rescued by adding fresh water in time and starting the aeration machine, but it is difficult to completely solve the problem