我县养鱼户阚新华承包了一口5亩的鱼池,由于鱼池老化,淤泥沉积严重,水体变浅,水质恶化,病害加重,产量下降。为了改善养殖条件,于今年1月初花了2200元用泥浆泵进行了清塘改造。鱼池清整后,他只加注了66厘米深的水,于1月26日上午将1吨斤两鱼种一次性投放鱼池。下午,他根据以往的老经验(池塘水深2米)将10千克漂白粉兑水全池泼洒,进行消毒。谁知.用药后不到一小时,鱼类便出现反 Kan Xinhua fish farmers in our county contracted a 5-mu fish pond. Due to aging fish ponds, silt sedimentation is serious, the water body is shallow, the water quality is deteriorated, the diseases are aggravated and the output is decreased. In order to improve the conditions of breeding, in early January this year, spent 2,200 yuan with a mud pump Qingtang transformation. After the fish ponds were cleaned up, he only filled in with a depth of 66 centimeters. On the morning of January 26, he put 1 ton of two-fish species into the pond once. In the afternoon, according to his old experience (pond depth 2 meters), he wiped out 10 kg of bleach and watered it for disinfection. Who knows. Less than an hour after treatment, there will be anti-fish