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Redhook myleus - Myloplus rubripinnis

Redhook myleus - Myloplus rubripinnis

Scientific name: Myloplus rubripinnis

Common name: Redhook myleus

Family: Serrasalmidae

Usual size in fish tanks: 33 - 38 cm (12.99 - 14.96 inch)


Recommended pH range for the species: 6.1 - 7

Recommended water hardness (dGH): 3 - 9°N (53.57 - 160.71ppm)

0°C 32°F30°C 86°F

Recommended temperature: 22 - 27 °C (71.6 - 80.6°F)

The way how these fish reproduce: Spawning

Where the species comes from: South America

Temperament to its own species: peaceful

Temperament toward other fish species: peaceful

Usual place in the tank: Middle levels

Food and feeding

Redhook myleus needs vegetable matter in its diet, supply spirulina flake, algae wafers and vegetable flakes for the staple diet adding peas, zucchini, and spinach directly to the tank as well. They will also relish treats of brine shrimp and blood worms.


South America; Redhook myleus is widespread over most of the South American waterways.


Difficult to sex, it is believed that the males have a longer anal fin but this isn’t always accurate.


As of yet there are no reported cases of these breeding in the aquarium, in the wild they are egg scatterers.


The expected life span for Myloplus rubripinnis is 5-10 years.

Short description

Myloplus rubripinnis needs a large aquarium and high water quality. It is often sold as a silver dollar but is a separate species. Do not add live plants to the tank or they will be eaten, use artificial if required and keep the lighting subdued.


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Redhook myleus picture 1 Redhook myleus picture 2 Redhook myleus picture 3

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