Can Common Pleco Live With Harlequin Rasbora?
Common Pleco and Harlequin Rasbora are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 72–82°F.
pH
✓ Compatible
Good pH overlap at 6.5–7.5.
Size
✗ Not Compatible
Extreme size difference. Common Pleco (18") may eat or bully Harlequin Rasbora (2").
Temperament
✓ Compatible
Both fish have compatible temperaments.
Swim Level
✓ Compatible
Fish occupy different water levels (Common Pleco: bottom, Harlequin Rasbora: middle), reducing conflict.
Important Notes
- Harlequin Rasbora is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 80 gallons
| Parameter | Common Pleco | Harlequin Rasbora |
|---|---|---|
| Temperature | 72–82°F | 72–82°F |
| pH | 6.5–7.5 | 6–7.5 |
| Max Size | 18" | 2" |
| Temperament | Peaceful | Peaceful |
| Swim Level | Bottom | Middle |
| Min Tank | 75 gal | 10 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.