Notropis is a genus of small freshwater fish commonly found in North America. They belong to the family Cyprinidae, which includes carps and minnows. Notropis species are typically characterized by their slender bodies, small mouths, and vibrant colors, making them popular among aquarium enthusiasts. These fish inhabit a variety of environments, including rivers, streams, and lakes. They often prefer areas with moderate to fast currents and abundant vegetation. Notropis species play an important role in their ecosystems, serving as prey for larger fish and contributing to the food web.