Can Electric Blue Acara Live With Least Killifish?
Electric Blue Acara and Least Killifish are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 72–80°F.
pH
✓ Compatible
Good pH overlap at 6.5–7.5.
Size
✗ Not Compatible
Extreme size difference. Electric Blue Acara (6") may eat or bully Least Killifish (1").
Temperament
⚠ Use Caution
Electric Blue Acara (semi-aggressive) may have issues with Least Killifish (peaceful). Monitor closely if attempting.
Swim Level
✓ Compatible
Fish occupy different water levels (Electric Blue Acara: middle, Least Killifish: top), reducing conflict.
Important Notes
- Least Killifish is a schooling fish and needs at least 4 of its kind.
Tank Requirements
Minimum tank size for this combination: 33 gallons
| Parameter | Electric Blue Acara | Least Killifish |
|---|---|---|
| Temperature | 72–82°F | 66–80°F |
| pH | 6.5–7.5 | 6.5–8 |
| Max Size | 6" | 1" |
| Temperament | Semi-aggressive | Peaceful |
| Swim Level | Middle | Top |
| Min Tank | 30 gal | 5 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.