Reef HQ is the world's largest living coral reef aquarium. It is located in Townsville, Queensland, Australia. The aquarium was built as a Bicentennial Commemorative project and is a part of the Great Barrier Reef Marine Park Authority (GBRMPA).
The Coral Reef Exhibit has 130 coral species and 120 fish species along with hundreds of species of sea stars, sea urchins, sea cucumbers, brittle stars, feather stars, snails, worms and sponges.
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ReefHQ was originally known as Great Barrier Reef Aquarium when it opened on 14 June 1987. The aquarium was renamed "ReefHQ" in 1999. Since 2009 the name of the aquarium was changed to reflect its original name. It is now known as Reef HQ Great Barrier Reef Aquarium.
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Water motion is created in the Coral Reef Exhibit by a pneumatic wave machine. Unusually, the aquarium is open to the weather, receiving precipitation, sun- and moonlight, just like natural coral reefs. The tank holds approximately 2.5 million litres of water.
According to en.wikipedia
