Silver Dollar

Metynnis argenteus

A big, peaceful, disc-shaped herbivore that will graze live plants to nubs.

Water

Freshwater

Temperature

75–82°F

pH

5.5–7.5

Hardness

4–15 dGH

Max size

6 in

Min tank

75 gal

Temperament

Peaceful

Social

Schooling (5+)

Swim level

Middle

Diet

Herbivore

Care level

Intermediate

Lifespan

8-10 years

Breeding

Egg-scatterer

Suitability

Intermediate

Origin

Amazon basin

Silver dollars are gentle giants that school and need a large tank. Expect them to eat most soft live plants, so decorate with hardy or artificial options.