Can Oscar Live With Phoenix Rasbora?
Oscar and Phoenix Rasbora are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 74–79°F.
pH
✓ Compatible
Good pH overlap at 6.0–6.5.
Size
✗ Not Compatible
Extreme size difference. Oscar (14") may eat or bully Phoenix Rasbora (0.8").
Temperament
✗ Not Compatible
Oscar (aggressive) is not compatible with Phoenix Rasbora (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 Phoenix Rasbora.
Important Notes
- Phoenix Rasbora is a schooling fish and needs at least 8 of its kind.
Tank Requirements
Minimum tank size for this combination: 78 gallons
| Parameter | Oscar | Phoenix Rasbora |
|---|---|---|
| Temperature | 74–81°F | 72–79°F |
| pH | 6–7.5 | 4–6.5 |
| Max Size | 14" | 0.8" |
| Temperament | Aggressive | Peaceful |
| Swim Level | Middle | Middle |
| Min Tank | 75 gal | 5 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.