What is a koi bomb?

A koi bomb is a type of aquatic device used in fishing, specifically designed to attract fish, particularly koi. It typically consists of a weighted lure containing a mixture of attractants and sometimes a food source, which is released into the water to draw fish closer. This method is often employed in koi ponds or lakes to enhance fishing success or to observe fish behavior. Koi bombs can vary in design and composition, depending on the specific fishing conditions and target species.