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引用第2楼nikki于2007-03-20 17:02发表的“”: +4g H=6 亚硝酸盐应为 0ppm比氨还毒,. 3 to 5 mg可以杀死鱼.毒性表现:缺氧, 快速鳃呼吸,游在上层呼吸, 鱼懒洋洋,没精神,鳃是褐色,黑红色,而不是草莓红. b!4Z~d0= .......
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