Our animals

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Northern lakes and seas

The ocean

Tropical rivers and lakes

Select aquaria

Dwarf mormyrid

Electric eel

Cave tetra

Neon tetra

Arowana

Philippines crocodile

Arapaima

Piranha

Stream aquarium

Under the riverbank

River cichlids

The plants in the river

Angelfish

Armored predators

Discusfish

Select species

Select a species to read more


Ninin Heckel discus

Ninin Heckel discus

Green Tefé discus

Green Tefé discus

Red pigeon blood discus

Red pigeon blood discus

Blue diamond discus

Blue diamond discus

Splash tetra

Splash tetra

Biotoecus opercularis

Biotoecus opercularis

Redbreast acara

Redbreast acara

Xingú Krobia-cichlid

Xingú Krobia-cichlid

Bolivian ram

Bolivian ram

Gold nugget Pleco

Gold nugget Pleco

Blue spot bristlenose pleco

Blue spot bristlenose pleco

Chameleon Whiptail

Chameleon Whiptail

White Knifefish

White Knifefish

Facts

LatinOrthosternarchus tamandua
Size45 cm
FoodCrustaceans, insect larvae, worms etc.
HabitatRivers and lakes
IUCN

Not evaluated

LocationPeru and Brazil
Map

The white knifefish swallows its food and can therefore only eat smaller prey. At Den blå Planet, National Aquarium Denmark, the white knifefish eats small worms.


Poison Frog

African river

Archerfish

Endangered species

Lake Tanganyika

Lake Malawi