Here is some info from the website about the whale shark tank:
This exhibit was specially designed to house the whale sharks, the largest fish species in the world. Toothy cubarra snappers, schools of predatory trevally jacks, squadrons of small and large stingrays, an enormous goliath grouper and hammerhead sharks, all ply the waters of this captive ocean habitat containing more than 6 million gallons of saltwater. With 4,574 sq. ft. of viewing windows, a 100 ft. long underwater tunnel, 185 tons of acrylic windows and the second largest viewing window in the world at 23 ft. tall by 61 ft. wide and 2 ft. thick, visitors will have multiple opportunities to view all of these magnificent animals. No other aquarium in the world has featured the MAR, and no other aquarium in the world has ever attempted to manage the variety and size of fishes in this major exhibit.
