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Red eyed characin - Arnoldichthys spilopterus

Red eyed characin - Arnoldichthys spilopterus

Scientific name: Arnoldichthys spilopterus

Common name: Red eyed characin

Family: Alestidae

Usual size in fish tanks: 6 - 7 cm (2.36 - 2.76 inch)


Recommended pH range for the species: 6 - 8

Recommended water hardness (dGH): 5 - 19°N (89.29 - 339.29ppm)

0°C 32°F30°C 86°F

Recommended temperature: 24 - 26 °C (75.2 - 78.8°F)

The way how these fish reproduce: Spawning

Where the species comes from: Africa

Temperament to its own species: peaceful

Temperament toward other fish species: peaceful

Usual place in the tank: Top levels

Food and feeding

Red eyed characins will accept all foods offered. Quality flake should provide the staple diet but they do require treats of blood worms and brine shrimp to keep them happy.


Africa; Red eyed characin is to be found in the Lower Niger and the Ogun Rivers in Nigeria.


Males will have a yellow or orange anal fin with five dark bands and a dark edging. The females will have dark spots on the anal fin.


Red eyed characins are an easy species to breed. Add some plants to the tank as the female will scatter up to 1000 eggs amongst them. Once spawning is complete, the parents should be removed. After 30 hours, the eggs should hatch and when the fry are free swimming they can be offered Infusoria or small live foods.


The expected life span for Arnoldichthys spilopterus is 5-10 years.

Short description

Arnoldichthys spilopterus are ideal for a community aquarium. They are a shoaling fish, never keep less than 10 fish in a group. Although Red eyed characins like a well planted tank, open swimming spaces should be left at the front.


Bought by from eyed characin, picture 1 Red eyed characin, picture 2 Red eyed characin, picture 3 Red eyed characin, picture 4

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