The rainbow darter (Etheostoma caeruleum) is a native North American fish that can be found in small, fast-moving streams and small to medium-sized rivers. It grows to 2 inches (51 mm) to 3 inches (76 mm) in length.
The species is very sensitive to pollution and silt, staying in clean, pollution-free water.
The rainbow darters is easily identified by three dark spots on the back, and blue and orange in the dorsal and anal fins. It is a small perch-like fish found in freshwater streams in North America.
Read more about Rainbow Darter: Life, Distribution, Ecology, Life History, Current Management, Management Recommendations, References
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