Red Hook Silver Dollar

Myloplus rubripinnis

Also known as: Redhook Myleus, Red Hook Metynnis

A large, disc-shaped silver dollar; males develop a hooked red anal fin.

Water

Freshwater

Temperature

76–82°F

pH

5–7.5

Hardness

2–15 dGH

Max size

9 in

Min tank

125 gal

Temperament

Peaceful

Social

Schooling (5+)

Swim level

Middle

Diet

Herbivore

Care level

Intermediate

Lifespan

10-15 years

Breeding

Egg-scatterer

Suitability

Intermediate

Origin

Amazon and Orinoco basins and the Guianas

Grows much larger than common silver dollars, so plan for a big tank and a group of 5 or more. Eats plants readily, so use hardy or artificial decor and feed plenty of greens. Skittish when kept alone or in small tanks.