The Cobbler Fish, primarily referring to the estuary cobbler (Cnidoglanis macrocephalus), is a native Australian species found in coastal and estuarine waters. Known for its venomous spines and nocturnal habits.
Scientific Name
Cnidoglanis macrocephalus
Habitat
Found in estuaries, coastal bays, and silty marine environments of temperate southern Australia.
Conservation
Not currently listed as endangered; however, habitat degradation and pollution pose threats.
Lifespan
Typically lives 10–15 years in the wild.
Fun Fact
Female cobbler fish lay fewer but larger eggs (500–3,500), increasing the survival rate of the young.
Diet
Opportunistic omnivores – feed on molluscs, crustaceans, worms, algae, and organic matter.
Average Size
Can grow up to 91 cm (35.8 inches) in length.
Location / Placement info
Displayed in the Coastal Reef Exhibit, near the Ocean-View Tunnel
FAQ
What is the lifespan of the Cobbler Fish?
Cobbler Fish can live up to 10–15 years in the wild and slightly less in captivity.
What do Cobbler Fish eat?
They are carnivorous bottom feeders, eating worms, crustaceans, mollusks, and small fish.
Are Cobbler Fish aggressive?
They are not aggressive but can be territorial and possess venomous spines for defense.
What is the ideal tank size for Cobbler Fish?
A minimum of 75–100 gallons is recommended, with soft substrate and hiding places.
Do Cobbler Fish need a reef environment to survive?
No, they prefer sandy or muddy estuarine environments with slow water flow.
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