生虫呀..救命!!

我條魚之前都試過,
你可以拿條魚出黎, 用牙籤把蟲撥走 (蟲當然要掉)
才再放回魚缸, 那條魚就不會有事了

之後放一些鹽落水作消毒
因為魚身會有傷口
好容易感染其他細菌

但行動要快呀, 蟲入了鰓, 條魚就會死了

聽你形容, 應該係魚虱,
魚虱在金魚其中一種很普遍的寄生蟲,(其他還有車輪蟲, 四眼蟲....等.)
你可以用鹽水浴的方法治療
每天加0.1%鹽水浸浴, 直到0.3%,
鹽水浴是一種最無生物危害, 又最方便的方法.
如果有相片, 更能對症下藥.

Just take the goldfish out and gently put the fish into a clean bowl. Use a chopstick and gentle 'peel' off the pest..this type of pest is usually very common in goldfish. Change the water and once you remove the pest, you can put the fish back. Try...this happen to my goldfishes very often.

Maybe you can play with your goldfish in order to let it swim fast.maybe it will go out from the fish.Then take it up and throw it away in the toilet.

If you can't,try to catch it.The fish will be very afraid and swim very very fast.Maybe the worm will go out.....

I just try my best to help you....

唉呀,不是什麼大問題,只是一隻可愛的虫虫吧,而且,魚吃虫的 = =
寄生虫也無什麼大不了,不會對魚有太大的傷害
你的魚,死不了的,不用怕