The male pajama cardinalfish incubates the eggs in its mouth until they hatch. They can be kept in home saltwater aquariums....
The Eastern Hulafish is named from it's "exaggerated body movements", which is a fancy way of saying that it wriggles around a lot — basically, it does the hula (as in the dance). The Eastern...
The character Nemo from the Disney movies is a common clownfish....
Lifespan often exceeds 30 years, and scientists have found some specimens to be over 200 years old! They have the ability to regenerate lost spines....
The stripey has a deep, compressed body which has a rounded back, it has a distinctive pattern of oblique black and yellow, sometimes white, stripes. The stripes extend onto the dorsal and anal fins, and...
Pale grey body with seven thinnish black vertical stripes....
The copperband butterflyfish can be kept in saltwater home aquariums, but can be difficult to look after....
As is indicated by its common name, the schooling bannerfish lives in large groups. It feeds on zooplankton in the open water, and juveniles may act as cleaner fish. I think the one pictured here...
The Scissortail Sergeant has a white or pale blue body, with five vertical black bands. Two horizontal bands are also often (but not always) present on the lobes of their tail. Their common name comes...
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The distinctively coloured Scribbled Angelfish has a colourful, dark blue body with pale blue horizontal scribbles. Yellow snout. Vertical yellow band behind pectoral fin. Large white patch behind its head. Yellow horizontal stripe below the...
The Blue Tang, has a bright royal blue body, yellow tail, with black patches/swirl in a "palette" shape. They are rather flat, like a pancake, with a circular body shape, a pointed snout-like nose, and...
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The pot-bellied seahorse has a forward-tilted, a long-snouted head, a distended but narrow pot belly, and a long, coiled tail....
The Moonlighter is closely related to the Mado and the Stripey. Though it can be sometimes confused with butterflyfishes. ...
The common lionfish (Pterois miles) is frequently confused with its close relative, the red lionfish (Pterois volitans). Lionfish venomous dorsal spines are used purely for defense. When threatened, the fish often faces its attacker in...
The Eastern Rock Blackfish may live as long as 45 years....
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The Common Sydney Octopus can grow quite large, though they are usually smaller than that. They are molluscs, not fish, though they are included in the "fish" section of the website because they're found in...
The golden trevally is distinguishable from other trevallies by its protrusible and rubbery mouth, and its unique colouration, which ranges from bright yellow with black bars as a juvenile to a golden-silvery colour as an...
Easily identified by the prominent black tips on its fins (especially on the first dorsal fin and its caudal fin). Its exposed first dorsal fin is a common sight in the region. Timid and skittish...
During the day, whitetip reef sharks spend much of their time resting inside caves. Unlike other requiem sharks, which rely on ram ventilation and must constantly swim to breathe, this shark can pump water over...
The giant trevally is distinguished by its steep head profile, strong tail scutes, and a variety of other more detailed anatomical features. It is normally a silvery colour with occasional dark spots, but males may...
Leopard sharks are nocturnal and spend most of the day resting motionless on the sea floor. At night, they actively hunt for molluscs, crustaceans, small bony fishes, and possibly sea snakes inside holes and crevices...
The International Union for Conservation of Nature (IUCN) has assessed the Shark Ray as Critically endangered in 2019, delisted from the vulnerable category, along with many other guitarfish species. It's threatened by fishing and by...
Green sawfishes are critically endangered. They're nocturnal hunters. Their "nose" or "saw" is called the rostrum. They can use their rostrum in self-defence against predators like sharks and even human divers. However they do not...