1, too heavy bait: when black pit happens, fish will quickly flee to the bottom, so using too heavy bait will make fish feel uncomfortable and unwilling to bite. Anglers should choose lightweight baits to keep the bait floating and attract the fish to bite.

2. Strong-smelling bait: Certain fish are more alert to strong-smelling bait, and they will avoid the area once they smell a strong odor. Therefore, it is best to choose odorless or slightly smelling baits in black pit situations to avoid attracting the attention of fish.

3. Large colorful baits: In the dark pit, fish will flee close to the bottom, so using large colorful baits may cause the fish to be alerted. In a black pit situation, it is best to choose a bait that is darker in color or matches the surrounding environment to increase the success rate of fishing.