Fish
Much the same thing as you find on a coral reef. Lots of coral, a huge assortment of sea creatures, plants, etc.
The coral reef is important because it home to sea creatures and more.
the great barrier reef was used for sea creatures that try to hide
sea stars mainly, and some other sea creatures that eat away at the coral reef
Coral Reef
All coral are living creatures.
Fishes like Clown fish (nemo). and other colorful sea creatures
The Great Barrier Reef is in the sea, so there is no zoo there. However there is a lot of sea creatures of all sorts to be seen around it.
They are not. I study elephants but have never found one on a coral reef. My associate studies big cats with similar results.
One can find information on the Nano Reef by visiting the official website for the reef. The reef is a popular attraction with plenty of beautiful fish species living in it.
Reef, e.g Great Barrier REEF or in an ocean
*reef fish live in it and so do sea anemones and lots of other sea creatures, so it is a good place for sea creatures, it doesn't harm them.