Can Cardinal Tetra Live With Mosquitofish?
Cardinal Tetra and Mosquitofish are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 73–84°F.
pH
✓ Compatible
Good pH overlap at 6.0–7.0.
Size
✓ Compatible
Compatible sizes (2" and 2.5").
Temperament
⚠ Use Caution
Cardinal Tetra (peaceful) may have issues with Mosquitofish (semi-aggressive). Monitor closely if attempting.
Swim Level
✓ Compatible
Fish occupy different water levels (Cardinal Tetra: middle, Mosquitofish: top), reducing conflict.
Trait Conflict
✗ Not Compatible
Mosquitofish is a coldwater species and should not be kept with tropical fish like Cardinal Tetra.
Important Notes
- Cardinal Tetra is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 15 gallons
| Parameter | Cardinal Tetra | Mosquitofish |
|---|---|---|
| Temperature | 73–84°F | 55–85°F |
| pH | 5–7 | 6–8.5 |
| Max Size | 2" | 2.5" |
| Temperament | Peaceful | Semi-aggressive |
| Swim Level | Middle | Top |
| Min Tank | 10 gal | 10 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.