Can Convict Cichlid Live With Three-Lined Pencilfish?
Convict Cichlid and Three-Lined Pencilfish are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 75–82°F.
pH
✓ Compatible
Good pH overlap at 6.5–7.0.
Size
⚠ Use Caution
Significant size difference (5" vs 1.5"). Convict Cichlid may bully or stress Three-Lined Pencilfish.
Temperament
✗ Not Compatible
Convict Cichlid (aggressive) is not compatible with Three-Lined Pencilfish (peaceful). Aggression or stress is very likely.
Swim Level
✓ Compatible
Fish occupy different water levels (Convict Cichlid: middle, Three-Lined Pencilfish: top), reducing conflict.
Important Notes
- Three-Lined Pencilfish is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 35 gallons
| Parameter | Convict Cichlid | Three-Lined Pencilfish |
|---|---|---|
| Temperature | 72–82°F | 75–82°F |
| pH | 6.5–8 | 5–7 |
| Max Size | 5" | 1.5" |
| Temperament | Aggressive | Peaceful |
| Swim Level | Middle | Top |
| Min Tank | 30 gal | 10 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.