Working at a public aquarium, theme park, research facility, or the aquatic section of a zoo, Aquarists are responsible to provide care and feeding of the fish and aquatic animals. They make sure all the tanks and exhibits are clean and free of unwanted algae. They check on pumps, heaters, and filters to maintain water quality, and monitor temperature. They also check for signs of disease or injury. The object is to provide a safe, nuturing environment. They create appropriate habitats and provide objects that stimulate activity for the marine animals.In some programs they may travel to gather and transportnew specimens. Their hours depend on the type of facility, working weekends and holidays at theme parks, for instance. There may be contact with the public, but most of the work is “behind the scenes.