Blue runner are very fast and aggressive fish known for traveling in schools along the coastlines of the Atlantic Ocean. They are considered a game fish, but many anglers use blue runner as bait. Most of these bait fish will be 10 to 12 inches, which is a perfect size for catching bigger fish. They can be used for trolling and still fishing. Blue runner are good for trolling because they are fast swimmers. Just make sure to keep your trolling speed fast enough because blue runner can actually out swim the boat and tangle all of your lines.