辽宁省康平县付向新读者来信说:老伴喜欢上小金鱼了,非要买点回家养。到家也是按照商家教的办法,鱼缸里放制氧器,一天喂一次,但不到三四天,都死掉了。老伴这回知道小金鱼不好养活,说再别买了,白瞎了小金鱼!我很想成全一下老伴的心愿,有什么妙法能养活小金鱼呢? Kangping County, Liaoning Province, to pay a new letter to the reader said: his wife like to small goldfish, and have to buy some back home. Home is taught in accordance with the business approach, put oxygen tank fish tank, fed once a day, but less than three or four days, are dead. This time my wife knows little goldfish to feed well, say do not buy, white blind small goldfish! I would like to make a wish about his wife’s wishes, what magic ways to feed small goldfish?