The Blue Miyuki Medaka Ricefish (Oryzias latipes), also known as the Japanese Ricefish or Japanese Killifish, is an extraordinarily adaptable fish species. This schooling fish can be the highlight in any peaceful community aquarium and it is a particular standout in the planted aquarium. There seems to be some debate as to whether it should be considered part of the killifish family since it behaves similarly, but is not closely related to most other killifish. This mostly subtropical fish can freely inhabit all salinities of water, from freshwater to fully marine water. Males typically have brighter blue coloration than females.
The Blue Miyuki Medaka Ricefish typically occupies the middle and top level of the water column. It is safe with other peaceful, small fish. Due to its small size, it can be viewed as similar to microrasboras and blue-eye rainbowfish as far as its compatibility with dwarf shrimp. Larger, peaceful invertebrates can also make good tankmates. When keeping the Blue MiyukiMedaka Ricefish with dwarf shrimp, plenty of plants and cover are recommended. It is also best to introduce the dwarf shrimp to the aquarium before introducing the Blue Miyuki Medaka Ricefish.
