Can Beckford's Pencilfish Live With Jack Dempsey?
Beckford's Pencilfish and Jack Dempsey are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 72–82°F.
pH
✓ Compatible
Good pH overlap at 6.5–7.5.
Size
✗ Not Compatible
Extreme size difference. Jack Dempsey (10") may eat or bully Beckford's Pencilfish (1.5").
Temperament
✗ Not Compatible
Beckford's Pencilfish (peaceful) is not compatible with Jack Dempsey (aggressive). Aggression or stress is very likely.
Swim Level
✓ Compatible
Fish occupy different water levels (Beckford's Pencilfish: top, Jack Dempsey: middle), reducing conflict.
Trait Conflict
✗ Not Compatible
Jack Dempsey is a predator and may eat Beckford's Pencilfish.
Important Notes
- Beckford's Pencilfish is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 55 gallons
| Parameter | Beckford's Pencilfish | Jack Dempsey |
|---|---|---|
| Temperature | 72–82°F | 72–86°F |
| pH | 5.5–7.5 | 6.5–7.5 |
| Max Size | 1.5" | 10" |
| Temperament | Peaceful | Aggressive |
| Swim Level | Top | Middle |
| Min Tank | 10 gal | 55 gal |
Check More Combinations
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