Oryzias woworae, also known as Daisy's Blue Ricefish, is a popular choice for nano aquariums due to its small size, bright colors, and adaptable nature. This schooling fish can add a vibrant touch to any peaceful community tank, especially in a planted setup. There is some discussion about its classification as a killifish, as it shares breeding behaviors but is not closely related to other killifish species. As a mostly subtropical fish, it is capable of thriving in varying levels of salinity, from freshwater to marine environments.