一、勤巡塘,防浮头每天要巡塘2～3次,黎明前后看有无鱼浮头;午后察看鱼的摄食情况;日落检查鱼的全天吃食状况,有无浮头预兆。在天气多变时,应在午夜前后巡塘,防止严重浮头。夏季由于水温高,溶氧少,有机物分解剧烈,入夜光合作用停止,呼吸作用旺盛,大量耗氧,致使鱼 First, Qin Xun Tong, anti-floating head every day to Xuntang 2 to 3 times, before and after dawn to see whether the floating head; afternoon to observe the feeding of fish; sunset check the fish all-day eating status, with or without a head omen. When the weather is changing, we should check the pond before and after midnight to prevent serious floating head. Due to the high temperature in summer, less dissolved oxygen, severe organic decomposition, overnight photosynthesis to stop breathing strong, a lot of oxygen, resulting in fish