Live Cardinal Tetra (Paracheirodon axelrodi)
One of the most stunning nano fish in the hobby, the Cardinal Tetra dazzles with a brilliant electric-blue stripe and a bold red stripe that runs the full length of its body — unlike the Neon Tetra, whose red only covers the lower half. A must-have for any planted aquarium or Amazonian biotope.
Why Aquarists Love Cardinal Tetras
- Peaceful schooling fish — best kept in groups of 6 or more
- Stunning coloration that pops in planted, low-light tanks
- Compatible with shrimp, corydoras, rasboras, and other small community fish
- Hardy once acclimated; great for intermediate fishkeepers
Care at a Glance
- Adult Size: ~2 inches (5 cm)
- Lifespan: 4–5 years with proper care
- Temperature: 73–81°F (23–27°C)
- pH: 4.5–7.0 (prefers soft, slightly acidic water)
- Minimum Tank Size: 10 gallons for a small school
- Diet: Micro pellets, crushed flakes, baby brine shrimp, daphnia
- Tank Setup: Heavily planted with driftwood, dark substrate, and gentle filtration
Shipping & Live Arrival Guarantee
All Cardinal Tetras ship fast across the US with heat or cold packs as needed. Every order is backed by our live arrival guarantee — your fish arrive healthy or we make it right.