Can Convict Cichlid Live With Least Killifish?
Convict Cichlid 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
⚠ Use Caution
Significant size difference (5" vs 1"). Convict Cichlid may bully or stress Least Killifish.
Temperament
✗ Not Compatible
Convict Cichlid (aggressive) is not compatible with Least Killifish (peaceful). Aggression or stress is very likely.
Swim Level
✓ Compatible
Fish occupy different water levels (Convict Cichlid: 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 | Convict Cichlid | Least Killifish |
|---|---|---|
| Temperature | 72–82°F | 66–80°F |
| pH | 6.5–8 | 6.5–8 |
| Max Size | 5" | 1" |
| Temperament | 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.