Boxfish are small, marine fish belonging to the family Ostraciidae. They are known for their unique, box-like shape and hard, bony outer shell, which provides protection from predators. Boxfish can be found in tropical and subtropical waters around the world, often near coral reefs. These fish are typically brightly colored, with patterns that can vary significantly between species. Boxfish are slow swimmers and primarily feed on algae, small invertebrates, and plankton. Their distinctive shape and behavior make them a popular subject for underwater photography and marine studies.