Can Harlequin Rasbora Live With Red-Bellied Pacu?
Harlequin Rasbora and Red-Bellied Pacu are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 76–82°F.
pH
✓ Compatible
Good pH overlap at 6.0–7.5.
Size
✗ Not Compatible
Extreme size difference. Red-Bellied Pacu (30") may eat or bully Harlequin Rasbora (2").
Temperament
✓ Compatible
Both fish have compatible temperaments.
Swim Level
✓ Compatible
Swim level compatibility is fine.
Important Notes
- Harlequin Rasbora is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 250 gallons
| Parameter | Harlequin Rasbora | Red-Bellied Pacu |
|---|---|---|
| Temperature | 72–82°F | 76–82°F |
| pH | 6–7.5 | 6–7.5 |
| Max Size | 2" | 30" |
| Temperament | Peaceful | Peaceful |
| Swim Level | Middle | Middle |
| Min Tank | 10 gal | 250 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.