Fly-Speckled Hardyhead (Craterocephalus stercusmuscarum)

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Fly-Speckled Hardyhead

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Fly-Speckled Hardyhead

Craterocephalus stercusmuscarum

132 Litres (35 US G.)

7.6-10.2cm (3-4 ")




6.0 - 6.5

20 -25 °C (68-77°F)

5-10 °d

1:2 M:F

Pellet Foods
Flake Foods
Live Foods

3-5 years



Additional names

Fly-Speckled Hardyhead, Tawny Hardyhead, Unspecked Hardyhead

Additional scientific names

Craterocephalus stercusmuscarum fulvus


Oceania: Australia, in the Murray-Darling drainage system and southeastern rivers as far north as the Mary River, Queensland.


Females will display a rounder fuller belly when they have eggs. Males have more yellow colouration than females.

Tank compatibility[edit]

A timid fish that requires company of its own kind, keep in groups of 6 or more. Ideally kept in a species tank but may work with other peaceful Australian natives such as Rainbowfish.


Should accept most foods and is best fed a high quality pellets along with live/frozen food such as brine shrimp and bloodworm.

Feeding regime[edit]

Feed once or twice a day.

Environment specifics[edit]

Requires a long tank as this fish is an active swimmer. A secure lid is a must as they are known to jump and the tank should be located in a quiet spot, a lot of activity outside the tank could spook them.


A shy nervous fish that can panic if startled.


A very slender elongate fish, predominantly silver-brown body with a bold white lateral line from the nose to the base of caudal which is traced below by a black lateral line.


External links[edit]