The northern redbelly dace (Chrosomus eos) is a fresh water cyprinid fish, generally found in lakes and small streams in the northeastern United States and eastern Canada.

[2] The northern redbelly dace is a minnow about 55 mm long with two dusky, longitudinal stripes along its sides under an iridescent silver back.

[4] In the United States the northern redbelly dace can be found in Maine, New Hampshire, New York, Pennsylvania, Michigan, Wisconsin, Minnesota, North and South Dakota, Nebraska, and Colorado.

The typical habitat conditions of small streams where the dace lives include: water supplied by clear, cool springs or seeps, absence of strong currents, effective cover like undercut banks and heavy brushy vegetation, and minimal[clarification needed] large piscivorous fish populations.

However, in states where it is vulnerable or endangered, it can only be found in extreme head waters of clear streams and spring-fed seepage pools.

Human activities have led to the reduction of cold-water streams and seepage, which reduces the suitable habitat for this Northern species.

[6] The northern redbelly dace feeds mainly on filamentous algae and diatoms, but also zooplankton and aquatic insect larvae.

[7] Throughout Canada, Minnesota, Wisconsin, Michigan, and the New England States, northern redbelly dace populations are considered stable.

Nonadhesive eggs are laid in filamentous algae and hatch eight to ten days later at a water temperature of 21–27 °C.