精养高产池塘由于鱼（虾等）的粪便、残剩饲料、有机肥料等的不断积累，加上泥沙混合，在池底形成一定厚度的淤泥。淤泥中含有大量有机物、细菌。有机物经细菌作用、氧化分解，消耗大量氧，往往使池塘下层水中本来不多的氧消耗殆尽，造成缺氧状态。在淤泥中厌气性细菌占绝对优 Intensive high-yielding pond Due to the continuous accumulation of excrement of fish (shrimp etc.), residual feed, organic fertilizer and the like, together with sediment, a certain thickness of sludge is formed at the bottom of the pond. Sludge contains a lot of organic matter, bacteria. Organic matter by the role of bacteria, oxidative decomposition, consume large amounts of oxygen, often make the underlying pond water was depleted of oxygen, resulting in hypoxia. Anaerobic bacteria in the sludge account for the absolute best