Can Golden Pencilfish Live With Green Terror?
Golden Pencilfish and Green Terror are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 73–80°F.
pH
✓ Compatible
Good pH overlap at 6.5–7.0.
Size
✗ Not Compatible
Extreme size difference. Green Terror (8") may eat or bully Golden Pencilfish (1.2").
Temperament
✗ Not Compatible
Golden Pencilfish (peaceful) is not compatible with Green Terror (aggressive). Aggression or stress is very likely.
Swim Level
✓ Compatible
Fish occupy different water levels (Golden Pencilfish: top, Green Terror: middle), reducing conflict.
Trait Conflict
✗ Not Compatible
Green Terror is a predator and may eat Golden Pencilfish.
Important Notes
- Golden Pencilfish is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 55 gallons
| Parameter | Golden Pencilfish | Green Terror |
|---|---|---|
| Temperature | 73–81°F | 72–80°F |
| pH | 5.5–7 | 6.5–8 |
| Max Size | 1.2" | 8" |
| Temperament | Peaceful | Aggressive |
| Swim Level | Top | Middle |
| Min Tank | 10 gal | 55 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.