Fish have a diversified diet consisting of shrimp, plants, worms, crabs, and even other fish! A-Z-Animals.com Fish are the world’s most varied group of vertebrates. Over 34,000 unique species have been identified by scientists, and many more still to be discovered.
- The majority of fish are ray-finned bony fish.
- Other categories, however, include cartilaginous and jawless fish.
- Fish inhabit every maritime habitat and depth, from surface feeders to bottom feeders and from freshwater fish to salty fish.
- All fish have gills that allow them to breathe and digitless limbs that allow them to maneuver in water.
Fish are a significant commercial food source for many communities. In addition, they are one of the most popular pets since they are so simple to care for. Nearly everyone can identify at least one type of fish, from goldfish to great white shark. However, could you also address the “what do fish eat?” question? In this article, we will examine the diets of many species of fish. 
What do fish in the ocean consume?
These fish are predominantly vegetarian, with a diet consisting primarily of plants and algae. Pelagic Fish Pelagic fish inhabit the open ocean and consume a variety of small marine organisms and plankton. These fish are typically rich in omega-3 fatty acids and low in fat.
What do carnivorous fish consume?
They consume live fish, insects, larvae, and crustaceans in the wild. All fish require protein, but a carnivore’s diet should consist of between 45 and 70 percent protein. In addition to proteins, these fish require a modest quantity of lipids for insulation and a tiny amount of carbs for energy.
As they grow larger, salmon begin to consume krill, herring, and other tiny fish. A variety of fish species are used to feed farm-raised salmon. These fish are carnivorous by nature and feed on an assortment of aquatic organisms.