What type of fish is on the Exedrin Back and Body commercial?

Answer 1

Something in the bass/crappie/sunfish family. It's on camera too briefly to make out too many distinguishing features, other than the dorsal fin isn't very notched. Possibly it's a rock bass, warmouth, black crappie, or green sunfish by the size. If anyone else wants to venture a guess, here's a link to the commercial - the fish is a little past the halfway point: http://www.excedrin.com/media/runner_wmv.html

Answer 2

I found what you're talking about and it goes by way too fast for me to tell but maybe someone else will be able to help. Looks to be some kind of wild fish and not an aquarium fish.