There is Medaka-kan in Higashiyama zoo of Nagoya-city, Aichi, in Japan.

There is that by car to a place for about 40 minutes from my house.

Medaka-kan is an aquarium of cyprinodontiform fishes.

Medaka-kan is feeding and breeding with about 200 species cyprinodontiform fishes of the world.

Entrance of Medaka-kan

Killifish says "MEDAKA" in Japanese. But a true medaka means Oryzias latipes in Japan.