Can Goldfish Live With Silver Dollar Fish?
Goldfish and Silver Dollar Fish are compatible. Temperature overlap 75–75°F. Both peaceful.
Conditions: Minimum 55 gallon tank.
Parameter Comparison
| Parameter | Goldfish | Silver Dollar Fish | Overlap |
|---|---|---|---|
| Temperature | 65–75°F | 75–82°F | 75–75°F ✓ |
| pH Range | 6.5–7.5 | 5.5–7.5 | 6.5–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 12" | 6" | Similar ✓ |
| Min Tank Size | 20 gal | 55 gal | 55 gal minimum together |
| Diet | Omnivore | Herbivore | — |
| Care Level | beginner | intermediate | — |
Tank Requirements for Goldfish + Silver Dollar Fish
To keep Goldfish and Silver Dollar Fish together, you need at minimum a 55 gallon tank. Silver Dollar Fish should be kept in a school of 5+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Goldfish
Carassius auratus
Goldfish are among the longest-kept ornamental fish, with a history spanning over 1,000 years. Despite their reputation as easy, bowl-dwelling pets, goldfish actually require spacious tanks with strong filtration. They are cold-water fish that should not be kept with tropical species. Common varieties include comets, fantails, orandas, and ryukins.
Full care guide →Silver Dollar Fish
Metynnis hypsauchen
Silver dollars are large, disc-shaped, peaceful schooling fish related to piranhas — but entirely herbivorous. Their shimmering silver body catches light beautifully in motion. They are excellent dither fish for large cichlid tanks because their calm, open-water swimming behavior helps reduce cichlid aggression. Warning: they will eat every live plant in your tank.
Full care guide →