Saltwater fish are species that live in the ocean, where the water is salty. These fish come in many shapes, sizes, and colors, making them fascinating to observe. Some popular examples include clownfish, tuna, and sharks. Saltwater fish are adapted to their environment, often having special features that help them survive in the salty water. Many people enjoy keeping saltwater fish in aquariums, as they can be beautiful and vibrant. However, maintaining a saltwater aquarium can be more challenging than a freshwater one due to the need for specific water conditions and care. Enthusiasts often research the best practices to ensure their marine life thrives.