Striped Silver Dollar
Metynnis fasciatus
Also known as: Striped Metynnis
A compact, banded silver dollar from the heart of the Amazon basin.

About
Found in the Capiuru River drainage of the middle Amazon basin, Metynnis fasciatus is one of the lesser-known members of the silver dollar group, and its relatively small adult size makes it a more manageable option than many of its relatives. Like other metynnis, the body is deep and laterally compressed, giving it that characteristic coin-shaped profile, and the species displays vertical banding that helps set it apart from the more uniformly silver members of the genus. In the wild it inhabits South American tropical freshwater systems typical of the broader Amazon drainage. Aquarium care sits somewhere in the intermediate range. Not because the fish is particularly delicate, but because it benefits from a well-considered setup. Being a schooling species, a group is far preferable to keeping individuals, and a tank of at least moderate size is needed to give them comfortable swimming room. As omnivores they accept a wide range of foods, though plant matter should feature regularly in their diet, and keepers should be aware that, like most silver dollars, they tend to make short work of live aquarium plants. A species worth seeking out for anyone already comfortable with the broader silver dollar family.
Similar species
Other fish you might consider
Good tank mates
Species that tend to coexist peacefully with Striped Silver Dollar
From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- How big does the Striped Silver Dollar get?
- The Striped Silver Dollar reaches about 1.5–2.5" as an adult.
- What size tank does the Striped Silver Dollar need?
- A minimum of 35 gallons is recommended for the Striped Silver Dollar, with more room needed for a proper group.
- What water parameters does the Striped Silver Dollar need?
- The Striped Silver Dollar does best with a temperature of 73–82°F, a pH of 6.5–7.5, hardness around 6–16 dGH.
- Is the Striped Silver Dollar aggressive?
- The Striped Silver Dollar is generally peaceful and suits a community tank with similarly calm tankmates.
- What does the Striped Silver Dollar eat?
- The Striped Silver Dollar is an omnivore. It does well on a varied diet of quality flake or pellet plus occasional frozen or live foods.
- How long does the Striped Silver Dollar live?
- With good care, the Striped Silver Dollar typically lives 5-6 years.