Can Bloodfin Tetra Live With Jack Dempsey?
Bloodfin Tetra 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
⚠ Use Caution
Significant size difference (10" vs 2"). Jack Dempsey may bully or stress Bloodfin Tetra.
Temperament
✗ Not Compatible
Bloodfin Tetra (peaceful) is not compatible with Jack Dempsey (aggressive). Aggression or stress is very likely.
Swim Level
✓ Compatible
Fish occupy different water levels (Bloodfin Tetra: top, Jack Dempsey: middle), reducing conflict.
Trait Conflict
✗ Not Compatible
Jack Dempsey is a predator and may eat Bloodfin Tetra.
Important Notes
- Bloodfin Tetra is a schooling fish and needs at least 5 of its kind.
Tank Requirements
Minimum tank size for this combination: 55 gallons
| Parameter | Bloodfin Tetra | Jack Dempsey |
|---|---|---|
| Temperature | 64–82°F | 72–86°F |
| pH | 6–8 | 6.5–7.5 |
| Max Size | 2" | 10" |
| Temperament | Peaceful | Aggressive |
| Swim Level | Top | Middle |
| Min Tank | 20 gal | 55 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.