This is a list of Association of Zoos and Aquariums member zoos and aquaria. Shanghai is also home to one of China's largest aquariums, the Shanghai Ocean Aquarium. The National Aquarium is one of the foremost aquariums in New Zealand. Crayfish are kept as pets in freshwater aquariums. This is a list of aquaria (public aquariums). Purified water is used in freshwater and marine aquariums. Azurite is also incompatible with aquatic media, such as saltwater aquariums. Around 100 okapis are in accredited Association of Zoos and Aquariums (AZA) zoos. Mesker Park Zoo is accredited by the Association of Zoos and Aquariums. He drew much of his inspiration from observing animals in aquariums and zoos. It is suitable for both aquariums and vivariums. SeaWorld is accredited by the Association of Zoos and Aquariums (AZA). SeaWorld San Diego is a member of the Association of Zoos and Aquariums (AZA). Manhattan's Sunset Zoo is accredited by the Association of Zoos and Aquariums (AZA). They are useful in aquariums for algae control.