According to researchers, the little fish live in dark, tea-colored water at least 100 times more acidic than rainwater.
研究人员说这种小鱼生活在黑暗、茶色的水中，水的酸性比雨水强至少100倍。
Fertilizers and chemical pesticides used by farmers can also be washed by rainwater into rivers and streams. They can kill fish and other water animals and plants.
农田里的化肥和化学杀虫剂也会被雨水冲到河里，毒死鱼类和其它的水生动植物。
Fertilizers and chemical pesticides used by farmers can also be washed by rainwater into rivers and streams. They can kill fish and other water animals and plants.
农田里的化肥和化学杀虫剂也会被雨水冲到河里，毒死鱼类和其它的水生动植物。
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