Bony Snouted Gudgeon (Butis butis)

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Bony Snouted Gudgeon

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Bony Snouted Gudgeon

Butis butis

95 Litres (25 US G.)

12-15 cm (4.7-5.9")


1 - 1.025


7.0 - 8.0

22 -28 °C (71.6-82.4°F)

9-19 °d

1:1 M:F

Pellet Foods
Flake Foods
Live Foods

8-12 years



Additional names

Bony Snouted Gudgeon, Duckbill Sleeper, Crazy Fish, Crocodile Fish, Upside Down Sleeper, Crimson-Tipped Gudgeon, Crimson-Tipped Flathead Gudgeon, Pointed-Head Gudgeon, Flat-Headed Gudgeon

Additional scientific names

Cheilodipterus butis, Eleotris butis, Eleotris amboinensis, Eleotris melanopterus, Elestris butis


Indo-West Pacific: East Africa to Fiji


It is difficult to visually sex this fish.

Tank compatibility[edit]

This fish should not be kept with smaller fish as they will be eaten. Will be generally peaceful towards larger fish but maybe aggressive and territorial to fish with similar habits.


A carnivorous fish preferring shrimp, bloodworm, brine shrimp and may also be weened onto pellets and flake.

Feeding regime[edit]

Feed once or twice a day.

Environment specifics[edit]

This fish prefers a brackish environment with plenty of tall plants combined with some open swimming space. It can be adapted to both marine and freshwater conditions.


A curious fish in that it will hunt and swim upside down, it is generally quite inactive however.


This fish well get darker and lighter depending on their environment. They are elongated fish which generally have a wide black lateral band from nose to caudal peduncle, bordered by lighter bands. The eyes are set high on the top of the head and the mouth is wide.


External links[edit]