Can Oscar Live With Swordtail?
Oscar and Swordtail are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 74–81°F.
pH
✓ Compatible
Good pH overlap at 7.0–7.5.
Size
⚠ Use Caution
Significant size difference (14" vs 4"). Oscar may bully or stress Swordtail.
Temperament
✗ Not Compatible
Oscar (aggressive) is not compatible with Swordtail (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 Swordtail.
Tank Requirements
Minimum tank size for this combination: 85 gallons
| Parameter | Oscar | Swordtail |
|---|---|---|
| Temperature | 74–81°F | 72–82°F |
| pH | 6–7.5 | 7–8 |
| Max Size | 14" | 4" |
| Temperament | Aggressive | Peaceful |
| Swim Level | Middle | Middle |
| Min Tank | 75 gal | 20 gal |
Check More Combinations
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