Elephant trunk mormyrid
Campylomormyrus elephas
Also known as Elephas elephantnose
Care at a glance
- Temperature
- 75–82°F (24–28°C)
- pH
- 6.0–7.5
- Adult size
- 15.7 in (40 cm)
- Minimum tank
- 119 gal (450 L)
- Temperament
- Mostly peaceful
- Social behavior
- Solitary
- Tankmates
- Tankmates with caution
- Swim level
- Bottom
- Difficulty
- Difficult
- Breeding
- No record
- Rarity
- Rare
- Origin
- Congo basin
- Family
- Mormyridae
Overview
A large elephantfish with a long, curved trunk it uses to root through the substrate for food. Keep it singly, as it will not tolerate its own kind in aquarium-sized space, and choose tankmates with caution: calm, sizeable fish that will not compete for food or nip at it. It needs a deep, soft sand bed to probe without harming its snout, wood and rock cover, dim light, and very stable water. Feed meaty sinking foods such as earthworm and bloodworm in the evening. A tank of around 450 liters suits this 40 cm fish.
In the wild
Campylomormyrus elephas lives in the Congo River basin, probing sandy and muddy river floors with its curved snout. To suit it, provide open areas of deep soft sand alongside wood and stone structure, and keep the lighting low. Hold the water warm at 24-28 C and soft to neutral, around pH 6-7.5, and very steady. A gentle current and pristine water quality reflect its flowing-river home and keep it healthy.
Good to know
Reaching about 40 cm, this elephantfish of the family Mormyridae has one of the longest, most strongly curved snouts in the genus Campylomormyrus, whose name means bent mormyrid. The trunk is a flexible extension of the jaws, tipped with electroreceptors, not a nose as it appears. It reads its world through a weak electric field. Its breeding is not recorded in aquaria.
Did you know
The trunk that gives the fish its name is not a nose at all but a downward extension of its jaws, and the genus name Campylomormyrus simply records the kink, meaning bent or curved mormyrid.
Common questions
What size tank does an Elephant trunk mormyrid need?
An Elephant trunk mormyrid needs at least 119 gal (450 L). It spends most of its time in the bottom.
What temperature and pH do Elephant trunk mormyrid need?
Elephant trunk mormyrid are comfortable at 75–82°F (24–28°C) with a pH of 6.0–7.5.
How big do Elephant trunk mormyrid get?
An adult Elephant trunk mormyrid reaches about 15.7 in (40 cm).
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Freshwater fish · Advanced fish · Bottom dwellers · Monster fish
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Related species

Curved snout mormyrid
Campylomormyrus rhynchophorusFreshwater8.7 in (22 cm)79 gal (300 L)75–82°F (24–28°C)
Blunt-jawed elephantnose
Campylomormyrus tamanduaFreshwater15.7 in (40 cm)172 gal (650 L)73–82°F (23–28°C)
Bebe mormyrid
Hyperopisus bebeFreshwater20.1 in (51 cm)264 gal (1,000 L)73–82°F (23–28°C)Painted mormyrid
Hippopotamyrus pictusFreshwater11.8 in (30 cm)159 gal (600 L)73–82°F (23–28°C)Eel mormyrid
Isichthys henryiFreshwater11.4 in (29 cm)79 gal (300 L)73–82°F (23–28°C)Eastern bottlenose mormyrid
Mormyrus longirostrisFreshwater29.5 in (75 cm)185 gal (700 L)75–82°F (24–28°C)
