Can Oscar Live With Swamp Barb?
Oscar and Swamp Barb are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 74–77°F.
pH
✓ Compatible
Good pH overlap at 6.0–7.5.
Size
⚠ Use Caution
Significant size difference (14" vs 4"). Oscar may bully or stress Swamp Barb.
Temperament
✗ Not Compatible
Oscar (aggressive) is not compatible with Swamp Barb (peaceful). Aggression or stress is very likely.
Swim Level
⚠ Use Caution
Both fish occupy the middle level and Oscar is territorial. Provide plenty of space and hiding spots.
Trait Conflict
✗ Not Compatible
Oscar is a predator and may eat Swamp Barb.
Important Notes
- Swamp Barb is a schooling fish and needs at least 5 of its kind.
Tank Requirements
Minimum tank size for this combination: 85 gallons
| Parameter | Oscar | Swamp Barb |
|---|---|---|
| Temperature | 74–81°F | 64–77°F |
| pH | 6–7.5 | 6–7.5 |
| Max Size | 14" | 4" |
| Temperament | Aggressive | Peaceful |
| Swim Level | Middle | Middle |
| Min Tank | 75 gal | 20 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.