Marine tank

A marine aquarium is a type of fish tank that is specifically designed to house marine fish and other sea creatures. Unlike freshwater aquariums, which contain fish and plants that live in freshwater environments, marine aquariums are filled with saltwater and are home to fish and invertebrates that are adapted to live in a saltwater environment (the sea). 

Marine aquariums require special equipment, such as protein skimmers and specialized lighting, to maintain a healthy environment for the marine creatures. They are often more complex to set up and maintain than freshwater aquariums but offer a unique and visually stunning display of marine life.