Opened on 19th March 1904, Waikiki Aquarium is the third oldest aquarium in the United States. Formerly known as Honolulu Aquarium, it exhibits animals rarely seen by the public or exhibited in aquaria. The aquarium also exhibits The Ocean Aquaculture, Northwestern Hawaiian Islands Exhibit, Corals Are Alive, The Galleries at the Aquarium, The Edge of the Reef and The Hawaiian Monk Seal, to name a few. Some of the unique organisms featured in the 4,000-gallon public display of Waikiki Aquarium include table corals, masked angelfish, yellow barbel goatfish and Japanese pygmy angelfish. It partners with NOAA Pacific Islands Region, NOAA Papah naumoku kea Marine National Monument, NOAA Hawaiian Islands Humpback Whale National Marine Sanctuary, N Pua No'eau Center for Gifted and Talented Native Hawaiian Children and NOAA Pacific Services Center.