The 117,000-gallon saltwater aquarium is home to the free interactive fish feeding shows. 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 a question and answer portion where guests can ask the diver any question they'd like. Shows are two times daily at 1:30pm & 4:30pm. Also, don't miss the live mermaid swim! Mermaid swims are Thu - Sat at 12pm - 8:15pm. Sun at 10:30am to 6:45pm.