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Tropical Reef Fish

Stunningly vibrant species at SEA LIFE Sydney

  • SEA LIFE, Day and Night on the Reef

Tropical Reef Fish Species

Discover the wonders of the reef with some of our most vibrant species

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Clown Anemonefish (Nemo)

On any day of the week here, you'll see children enthusiastically prodding their fingers against the glass shouting 'I found Nemo!' The Clown Anemonefish is highly adapted to its environment, striking up one of nature's most unique partnerships as a defence mechanism. Juveniles develop an immunity to certain types of sea anemone, within the tentacles of which they hatch. However, it's a short-lived mode of protection, as this immunity needs to be regularly maintained, seemingly wearing off if the fish leaves its host anemone for as little as an hour.


Blue Tang

Blue Tang (Dory)

The familiar and friendly Regal Blue tang is renowned for its distinctive royal blue body and tail. They are also commonly known as Palette surgeonfish and the Hippo tang. Regal Blue tangs can grow up to 20-30 centimetres in length and are typically found amongst coral reefs of the Indo-Pacific Oceans, East Africa, Japan, Samoa, New Caledonia and Australia. Juveniles mostly feed on plankton while the diets of the adult tangs are omnivorous, feeding on plankton and algae.




The Unicornfish, named after its unicorn-like horn on its head is commonly found amongst coral and rocky reefs. It can grow up to 60 centimetres in length and has a predominantly herbivorous diet, feeding on algae. 


Harlequin tuskfish

Harlequin Tuskfish

The Harlequin tuskfish is a solitary and monogamous species from the wrasse family found in regions the Western Pacific Ocean. This blue, green and orange coloured species can grow up to 30 centimetres in length and its diet consists of crustaceans, molluscs and other invertebrates.