Can Giant Danio Live With Oscar?
Giant Danio and Oscar are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 74–80°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 Giant Danio.
Temperament
✗ Not Compatible
Giant Danio (semi-aggressive) is not compatible with Oscar (aggressive). Aggression or stress is very likely.
Swim Level
✓ Compatible
Fish occupy different water levels (Giant Danio: top, Oscar: middle), reducing conflict.
Trait Conflict
✗ Not Compatible
Oscar is a predator and may eat Giant Danio.
Important Notes
- Giant Danio is a schooling fish and needs at least 5 of its kind.
Tank Requirements
Minimum tank size for this combination: 75 gallons
| Parameter | Giant Danio | Oscar |
|---|---|---|
| Temperature | 72–80°F | 74–81°F |
| pH | 6–8 | 6–7.5 |
| Max Size | 4" | 14" |
| Temperament | Semi-aggressive | Aggressive |
| Swim Level | Top | Middle |
| Min Tank | 30 gal | 75 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.