An order of ray-finned fish, also called the Microcyprini, and comprising mostly small, fresh-water fish. They are closely related to the Atheriniformes[?] and are occasionally included with them. Many popular aquarium fish, such as killifish and live-bearers, belong here.
... present, and 42.6% are non-families. 29.5% of all households are made up of individuals and 4.9% have someone living alone who is 65 years of age or older. The average ...