I would suggest that don't change the water too often, especially at the beginning. It really hurts.

以下是引用Coral在2004-8-7 14:58:08的发言：
买了5条金鱼，三周内死了4条。缸里的水总是又混又白，头天刚换了水
第二天就混了。买了好几种药，倒进去，不管用。怎么回事啊？