Baitfish are small fish used as live or dead bait to catch larger fish. Common types of baitfish include minnows, shiners, and sardines. They are often found in freshwater and saltwater environments, serving as a food source for many predatory fish. Anglers use baitfish to attract species like bass, trout, and pike. The effectiveness of baitfish depends on their size, movement, and scent, which mimic the natural prey of larger fish. Properly using baitfish can significantly increase the chances of a successful fishing trip.