Can Silver Dollar Fish Live With Pygmy Corydoras?
Silver Dollar Fish and Pygmy Corydoras are not compatible due to size mismatch or behavioral conflicts.
Parameter Comparison
| Parameter | Silver Dollar Fish | Pygmy Corydoras | Overlap |
|---|---|---|---|
| Temperature | 75–82°F | 72–79°F | 75–79°F ✓ |
| pH Range | 5.5–7.5 | 6–7.5 | 6–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 6" | 1" | Size mismatch ✗ |
| Min Tank Size | 55 gal | 10 gal | 55 gal minimum together |
| Diet | Herbivore | Omnivore | — |
| Care Level | intermediate | beginner | — |
Species Profiles
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 →Pygmy Corydoras
Corydoras pygmaeus
Pygmy corydoras are tiny, adorable catfish that max out at just 1 inch. Unlike other corys that stay on the bottom, pygmy corys are unique in that they frequently swim in the mid-water column, hovering in groups like tiny helicopters. They are perfect for nano tanks and shrimp tanks, and their micro-schooling behavior is endlessly entertaining.
Full care guide →