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(一)池底黑化的原因养殖前未进行清淤或清淤不彻底,存留的淤泥中含有大量的有机物质,水温适宜时变质发黑发臭;投饲量过大或投饵太集中,造成饲料过剩,一段时间内残饵腐败变质,发黑发臭,继
(A) the reasons for black bottom pool No dredging before dredging or dredging is not complete, the remaining sludge contains a large amount of organic matter, when the water temperature degenerate black hair smelly; excessive feed or too much feeding , Resulting in excess feed, bait for a period of time spoilage, black and smelly, following