Managed by The Mirage hotel's own in-house marine biologists, the aquarium accommodates more than 1,000 coral-reef species from Australia, Hawaii, Tonga, Fiji, the Red Sea, the Marshall Islands, the Sea of Cortez and the Caribbean. These sea animals were all selected for their adaptivity to the environment and compatibility with other species.
One of the most elaborate and technically advanced aquariums in the world, the tank is 53 feet long, eight feet from top to bottom, and six feet from front to back. The interior was carefully created to simulate an intricately detailed, artificial coral reef. To preserve the living reefs in the ocean, no live coral is used in the tank.