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Dwarf mormyrid

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Arapaima

Arapaima

Barred sorubim

Barred sorubim

Redtail catfish

Redtail catfish

Acary avion

Acary avion

Red-bellied Pacu

Red-bellied Pacu

Itaituba freshwater stingray

Itaituba freshwater stingray

Redhump eartheater

Redhump eartheater

Sailfin pimeloid

Sailfin pimeloid

Broadband red headstander

Broadband red headstander

Metallic livebearer

Metallic livebearer

Rosy tetra

Rosy tetra

Emperor tetra

Emperor tetra

Red phantom tetra

Red phantom tetra

Redhook myleus

Redhook myleus

Colombian darter characin

Colombian darter characin

Striped Headstander

Striped Headstander

Winterbottoms headstander

Winterbottoms headstander

Equator hero cichlid

Equator hero cichlid

Ecuador Cichlid

Ecuador Cichlid

Meta Cichlid

Meta Cichlid

Red-eye Tetra

Red-eye Tetra

Oscar

Oscar

Yellow plankton cichlid

Yellow plankton cichlid

Cardinal tetra

Cardinal tetra

Gulper Catfish

Gulper Catfish

Common Whiptail Catfish

Common Whiptail Catfish

Arapaima

Arapaima

Facts

LatinArapaima sp. aff. gigas
Size300 cm
FoodFish and large crustaceans
HabitatRivers
IUCN

Data deficient

Unknown. May be threatened because of overfishing

LocationThe Amazon basin in South America
Map

A scaly giant

The arapaima is clearly distinguishable from the other fish in the aquarium. Its scales are enormous, and they can be up to 6 cm in diameter. Not all fish have scales, but among scaled fish, the arapaima has the largest ones.

Needs oxygen

In the Amazon River, oxygen content is often low. The arapaima breathes through its gills, but it also depends on surface air. The arapaima has no lungs, but it uses its swim bladder to extract oxygen from the air.

All mouth

The arapaima has a large mouth. When it opens its mouth quickly, it creates a partial vacuum that enables it to capture its prey at a long distance by sucking it into its mouth. You can hear a loud splash when the arapaima opens its mouth at the water's surface.

Sponsor of the arapaima


Under the riverbank

River cichlids

The plants in the river

Angelfish

Armored predators

Discusfish

Poison Frog

African river

Archerfish

Endangered species

Lake Tanganyika

Lake Malawi