Can Congo Tetra Live With Fire Eel?
Congo Tetra and Fire Eel are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 75–82°F.
pH
✓ Compatible
Good pH overlap at 6.5–7.5.
Size
✗ Not Compatible
Extreme size difference. Fire Eel (24") may eat or bully Congo Tetra (3.5").
Temperament
⚠ Use Caution
Congo Tetra (peaceful) may have issues with Fire Eel (semi-aggressive). Monitor closely if attempting.
Swim Level
✓ Compatible
Fish occupy different water levels (Congo Tetra: middle, Fire Eel: bottom), reducing conflict.
Trait Conflict
✗ Not Compatible
Fire Eel is a predator and may eat Congo Tetra.
Important Notes
- Congo Tetra is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 75 gallons
| Parameter | Congo Tetra | Fire Eel |
|---|---|---|
| Temperature | 73–82°F | 75–82°F |
| pH | 6–7.5 | 6.5–7.5 |
| Max Size | 3.5" | 24" |
| Temperament | Peaceful | Semi-aggressive |
| Swim Level | Middle | Bottom |
| Min Tank | 30 gal | 75 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.