The ballyhoo halfbeak or ballyhoo (Hemiramphus brasiliensis) is a baitfish of the halfbeak family (Hemiramphidae). It is similar to the Balao halfbeak (H. balao) in most features. Ballyhoo are frequently used as cut bait and for trolling purposes by saltwater sportsmen. The fish is reported to have caused ciguatera poisoning in humans. Also known as balahu, redtailed balao, and yellowtail ballyhoo, ballyhoo can be seen above the waters skimming the surface to escape from their predators. The appearance is similar to skipping stones on the water.