The 117,000-gallon saltwater aquarium is home to the free interactive fish feeding shows. During each show, one of the Silverton's staff marine biologists dives into the aquarium, equipped with a full-face communication mask that allows him/her to interact with guests while feeding the animals, which include 4,200 tropical fish, stingrays, eels and sharks. There is also a question and answer portion where guests can ask the diver any question they'd like. Shows are two times daily at 1:30pm and 4:30pm. Also, don't miss the live mermaid swim! Mermaid swims are scheduled Thursday - Saturday at 1pm; 5pm and 7:30pm and Sunday at 11:30am, 2:15pm and 5pm. In addition, the Mermaid Lounge features two 500-gallon jellyfish aquariums lit with LED lights.