Brought my camera-on-a-stick up to Long Shoals Roadside Park in Pickens, SC. It's a shallow, bedrock-bottomed section of the Little Eastatoe Creek which feeds into Lake Keowee, in the far north of the Seneca watershed (Fishmap 03060101) just a few minutes south of the SC/NC border.
Was expecting to find a lot of cyprinids and wasn't disappointed. I'll have to get some snorkeling gear soon.
Young Hypentelium nigricans? About 2 inches long, several of them in the same area, snoofing through the sand. It's hard to make out from the pictures but it has a sucker-style dorsal fin. They were so small I thought they must be darters until I saw that snout in the footage.
I'm gonna say Nocomis sp.:
Shiners of some sort! This pool was full of 'em. More of those prolific yellowfins I've seen virtually everywhere I look? Some other Notropis? Something else?
And down in the lower depths of the same pool, perhaps some Rhinichthys?