Good job Bill, they are the eastern subspecies of the blacknose dace. The western and eastern subspecies have fairly distinct orange coloration. They max out at about 3" in size. The females do not have that pretty orange coloration that the males do.

Blacknose dace are very common in tiny and small streams but become less common in streams larger than that. They are often found in streams with brook trout and brown trout but can tolerate much warmer water. They generally aren't found in streams that are big enough to support SMB or other game fish. Surprisingly they are fairly tolerant of low DO, most likely because they are sometimes found in seasonally dry streams where flow may stop. So they are adapted to living in the stagnant deeper holes of these streams during the dry months. However, they spawn in the spring and need moving water to be successful. This is usually early April here in VA and if you go to a stream where they are found, you can see them by hundreds in shallow riffle areas spawning and you will see the many males and their bright orange fins flashing about guarding their little section of the riffle.

A closely related species is the longnose dace, which gets up to 6" and doesn't have the bright orange coloration down the side and in the pectoral fins like the males of the blacknose dace do. They are more commonly found in slightly larger streams and are often found with SMB. Both species make easy to care for and interesting aquarium inhabitants. Using a powerhead to create current will allow them to show of their fast water maneuvering talents.