Double-Trunk Elephantnose (Campylomormyrus tamandua)

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Double-Trunk Elephantnose

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Double-Trunk Elephantnose

Campylomormyrus tamandua

379 Litres (100 US G.)

35-40 cm (13.8-15.7")




5.0 - 7.5

22.2-24.4°C (72 -76 °F)

3-10 °d

1:1 M:F

Pellet Foods
Flake Foods
Live Foods
Other (See article)

8-12 years



Additional names

Double-Trunk Elephantnose, Wormjawed Mormyrid, Blunt-Jaw Elephantnose, Trunkfish

Additional scientific names

Gnathonemus tamandua, Gnathonemus elephas, Mormyrus tamandua

Tank compatibility[edit]

Not compatible with other mormyrids. The best tank mates for this fish will be relatively large, peaceful, and less than voracious feeders.


Live tubifex worms and crustaceans are most commonly used. Pellets infrequently successful. Frozen meaty foods also appreciated.

Environment specifics[edit]

Very sensitive to conditions. The elephantnose requires pristine water and a fine clean substrate, as the fish feeds by sifting through the substrate with it's long nose. Infections of the "trunk" are fairly common.


Creates a weak electromagnetic current from a special organ in its tail that it uses while searching for food, and to communicate with other Elephantnoses. Difficult to keep more than one in an aquarium, as this current can lead to violent "misunderstandings". Tends to exhibit the least stress in a well-planted aquarium. However, they will uproot plants as they forage.


External links[edit]