YOU SAID:

one fish, 2 fish, red fish, blue fish.

INTO JAPANESE

一匹、二匹、赤魚、青魚。

BACK INTO ENGLISH

One horse, two horses, red fish, herring.

INTO JAPANESE

一頭、二頭、赤魚、ニシン。

BACK INTO ENGLISH

One, two, red fish, herring.

INTO JAPANESE

一、二、赤魚、ニシン。

BACK INTO ENGLISH

One, two, red fish, herring.