Silver Dollar (Ahl, 1923)
| Scientific Name | Metynnis argenteus |
| Diet | Omnivore: bloodworms, tubifex, brine shrimp; prepared flake, pellets. |
| Alt Common Name | |
| Family | Characidae |
| Origin | South America |
| Aquarist Level | Beginner/Intermediate |
| Community Aquarium Safe | With caution. |
| Coloration | Silver body with red fins. |
| Disposition | Peaceful |
| Hardiness | Moderate |
| Compatibility | Compatible with Catfish, Danios, Livebearers, Loaches, Minnows, Plecos, Rainbowfish, Larger Tetras. |
| Mature Size | Typically 4 inches in the aquarium, to 6 inches in the Wild. |
| Minimum Recommended Aquarium Size | 50 gallons |
| Sexual Dimorphism | None visible. |