The primary diet of predatory fish primarily consists of other fish and aquatic organisms. These carnivorous fish are equipped with sharp teeth and strong jaws, enabling them to catch and consume prey effectively. Their diet can vary depending on their habitat and availability of food sources, which include smaller fish, crustaceans, and sometimes even plankton in the case of juvenile predatory fish. Some examples include species like sharks, pike, and tuna, which are known for their role at the top of the aquatic food chain. Lesser predatory species may also consume detritus or plant matter, but they primarily rely on meat to thrive.