Gudgeon, Dace, MINNOW, CHUB, and Piranha are all small freshwater fish. Gudgeon is a 7-letter fish that is found in Europe and Asia and is a member of the Cyprinidae family. Dace is a 4-letter fish that is also a member of the Cyprinidae family and is found in Europe and North America. MINNOW is a 6-letter fish that is found in North America and is a member of the Cyprinidae family. CHUB is a 4-letter fish that is found in Europe and North America and is a member of the Cyprinidae family. Lastly, Piranha is a 7-letter fish that is found in South America and is a member of the Characidae family.