Baitfish are small fish that are commonly used as live bait for fishing. They are typically found in freshwater and saltwater environments and serve as a food source for larger fish, making them effective for attracting predators. Common species of baitfish include minnows, shiners, and sardines. Fishermen often catch baitfish using nets or traps, or they may purchase them from bait shops. Using baitfish can increase the chances of catching larger fish, such as bass or trout, as these predators are naturally inclined to hunt smaller fish.