請問這是什麼魚? - 魚

上個月從鄉下池塘回家養的小魚

不到一個月就從0.3cm長到快4~5cm了

想請問一下這是什麼魚?

想看看是不是會長很大的魚?

http://imageshack.us/photo/my-images/809/p1120033.jpg/

http://imageshack.us/photo/my-images/835/p1120034t.jpg/

http://imageshack.us/photo/my-images/705/p1120035p.jpg/

http://imageshack.us/photo/my-images/515/p1120036j.jpg/

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