Can Green Terror Live With Least Killifish?
Green Terror 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 6.5–8.0.
Size
✗ Not Compatible
Extreme size difference. Green Terror (8") may eat or bully Least Killifish (1").
Temperament
✗ Not Compatible
Green Terror (aggressive) is not compatible with Least Killifish (peaceful). Aggression or stress is very likely.
Swim Level
✓ Compatible
Fish occupy different water levels (Green Terror: middle, Least Killifish: top), reducing conflict.
Trait Conflict
✗ Not Compatible
Green Terror is a predator and may eat Least Killifish.
Important Notes
- Least Killifish is a schooling fish and needs at least 4 of its kind.
Tank Requirements
Minimum tank size for this combination: 58 gallons
| Parameter | Green Terror | Least Killifish |
|---|---|---|
| Temperature | 72–80°F | 66–80°F |
| pH | 6.5–8 | 6.5–8 |
| Max Size | 8" | 1" |
| Temperament | Aggressive | Peaceful |
| Swim Level | Middle | Top |
| Min Tank | 55 gal | 5 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.