Can Cardinal Tetra Live With Swordtail?
Cardinal Tetra and Swordtail are compatible. Temperature overlap 73–81°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Cardinal Tetra | Swordtail | Overlap |
|---|---|---|---|
| Temperature | 73–81°F | 70–82°F | 73–81°F ✓ |
| pH Range | 4.5–6.5 | 7–8 | 7–7 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 2" | 5.5" | Similar ✓ |
| Min Tank Size | 11 gal | 20 gal | 20 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | beginner | — |
Tank Requirements for Cardinal Tetra + Swordtail
To keep Cardinal Tetra and Swordtail together, you need at minimum a 20 gallon tank. Cardinal Tetra should be kept in a school of 8+. Swordtail should be kept in a school of 4+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Cardinal Tetra
Paracheirodon axelrodi
The Cardinal Tetra (Paracheirodon axelrodi) is a beginner freshwater species known for its blue, red coloration. Brighter color than neon tetra. Mid to Lower-Mid.
Full care guide →Swordtail
Xiphophorus hellerii
The Swordtail (Xiphophorus hellerii) is a beginner freshwater species known for its red-orange, green coloration. Males have elongated sword-like tail. Mid to Top.
Full care guide →