Can Cardinal Tetra Live With Sven's Eartheater?
Cardinal Tetra and Sven's Eartheater CAN coexist, but with some risks. Careful setup and monitoring required.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 78–84°F.
pH
✓ Compatible
Good pH overlap at 5.5–7.0.
Size
⚠ Use Caution
Significant size difference (7" vs 2"). Sven's Eartheater may bully or stress Cardinal Tetra.
Temperament
✓ Compatible
Both fish have compatible temperaments.
Swim Level
✓ Compatible
Fish occupy different water levels (Cardinal Tetra: middle, Sven's Eartheater: bottom), reducing conflict.
Important Notes
- Cardinal Tetra is a schooling fish and needs at least 6 of its kind.
- Sven's Eartheater is a schooling fish and needs at least 5 of its kind.
Tank Requirements
Minimum tank size for this combination: 55 gallons
| Parameter | Cardinal Tetra | Sven's Eartheater |
|---|---|---|
| Temperature | 73–84°F | 78–86°F |
| pH | 5–7 | 5.5–7.5 |
| Max Size | 2" | 7" |
| Temperament | Peaceful | Peaceful |
| Swim Level | Middle | Bottom |
| Min Tank | 10 gal | 55 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.