Can Pea Puffer Live With Silver Dollar Fish?
Pea Puffer is aggressive and will likely attack or stress tank mates.
Parameter Comparison
| Parameter | Pea Puffer | Silver Dollar Fish | Overlap |
|---|---|---|---|
| Temperature | 74–82°F | 75–82°F | 75–82°F ✓ |
| pH Range | 7–8 | 5.5–7.5 | 7–7.5 ✓ |
| Temperament | aggressive | peaceful | Aggression risk ✗ |
| Max Size | 1" | 6" | Size mismatch ✗ |
| Min Tank Size | 5 gal | 55 gal | 55 gal minimum together |
| Diet | Carnivore | Herbivore | — |
| Care Level | intermediate | intermediate | — |
Species Profiles
Pea Puffer
Carinotetraodon travancoricus
Pea puffers are the smallest freshwater pufferfish in the world, growing to just 1 inch. Despite their tiny size, they have big personalities — they are curious, intelligent, and surprisingly aggressive. They are best kept in species-only tanks and require live or frozen food.
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 →