Dozens of species of tropical fish can be found in Aquaria: World of Fishes. Alongside those from as far afield as the Indian Ocean and the South Pacific, there's also a section dedicated to "locals" from the waters around San Diego. There is one of the largest schools of Piranhas on exhibit as well as prehistoric alligator gar, the massive fruit-eating pacus, leopard sharks and thousand of colorful and exotic reef fish.