did a search for info here's a snippet
The incredible centerpiece to the aquarium display is called the shark lagoon and was opened in December of 2000. This display is 9.1 meters in length, 6 meters deep and contains 450 m3 of water (450,000 liters or approximately 122,000 gallons). The display has four viewing areas and is actually composed of 2 separate aquariums (separate with respect to livestock). The smaller of the two aquariums represents the reef lagoon, and contains a spectacular display of many smaller species of fish, and invertebrates. A clear viewing pane is in between this smaller reef tank and the larger (~2-3x larger) open ocean aquarium, which contains large sharks, rays, groupers, eels, jacks, a sea turtle and other large fish. There are four viewing areas to this display, the upper reef (a stunning welcome to the aquarium exhibit), the open ocean main view, the open ocean sheltered view and the lower reef view. Displayed to the right is the open ocean main view, with the reef display in the background.