I agree with Dustin. Golden shiner. Your fish is a juvenile, but you're probably looking at pictures of adults (which look a little different). Here's a photo of a juvenile golden shiner that looks very similar to yours.
The shape of the snout with a small, strongly upturned mouth is pretty distinctive for golden shiner. In the future, some of the other golden shiner features to look for include a laterally compressed body (tall and narrow), strongly decurved (downward) lateral line, and dorsal fin origin well behind pelvic fin origin.
If you don't have it, you should get the Peterson Field Guide to Freshwater Fishes. You can buy it for around $10-20, and it has identification information for all NA freshwater fish.