Can Neon Tetra Live With Cardinal Tetra?
Neon Tetra and Cardinal Tetra are compatible. Temperature overlap 73–81°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Neon Tetra | Cardinal Tetra | Overlap |
|---|---|---|---|
| Temperature | 70–81°F | 73–81°F | 73–81°F ✓ |
| pH Range | 6–7 | 4.5–7 | 6–7 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 1.5" | 2" | Similar ✓ |
| Min Tank Size | 10 gal | 10 gal | 20 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | intermediate | — |
Tank Requirements for Neon Tetra + Cardinal Tetra
To keep Neon Tetra and Cardinal Tetra together, you need at minimum a 20 gallon tank. Neon Tetra should be kept in a school of 6+. Cardinal Tetra should be kept in a school of 6+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Neon Tetra
Paracheirodon innesi
The Neon Tetra is arguably the most popular freshwater aquarium fish in the hobby. Their electric blue stripe and red tail create a stunning display, especially in large schools against a planted backdrop. Hardy, peaceful, and easy to care for, neon tetras are perfect for beginners and make excellent community tank members.
Full care guide →Cardinal Tetra
Paracheirodon axelrodi
Cardinal tetras look similar to neon tetras but have a red stripe that extends the entire length of their body (vs only the back half in neons). They prefer softer, more acidic water and are slightly more delicate, but their deeper coloration makes them highly sought after.
Full care guide →