Can Cardinal Tetra live with Neon Blue Rasbora?
Compatible
Why
No conflicts — these two share similar water needs, temperament, and size, and neither is a threat to the other.
Sweet spot: both do well at 73–79°F and pH 5–6.5 — aim there.
Side-by-side
| Cardinal Tetra | Neon Blue Rasbora | |
|---|---|---|
| Temperature | 73–81°F | 72–79°F |
| pH | 5–7 | 4.5–6.5 |
| Hardness (GH) | 1–6 dGH | 1–5 dGH |
| Adult size | 2" | 0.8" |
| Temperament | Peaceful | Peaceful |
| Min tank | 15 gal | 10 gal |
Together, plan on at least 15 gallons.
Where to buy
- Cardinal Tetra: buy at The Shrimp Farm · The Shrimp Farm live-arrival guarantee
Live-animal shipping: add a heat pack below 50°F, expect weather holds above 90°F, and schedule delivery for a moderate week when someone can receive it promptly.
Design the whole tank, not just the stocking
Skapelab plans a complete, buildable planted aquarium around your fish — a hand-illustrated layout, the exact plants and hardscape, a placement map, and a full equipment and shopping list. Free.
Design a tank with Cardinal Tetra, Neon Blue Rasbora →Everything compatible with Cardinal Tetra · …with Neon Blue Rasbora