Can Wild-Type Betta live with Cardinal Tetra?
Light caution
Why
- Wild-Type Betta is semi-aggressive — give the peaceful Cardinal Tetra plenty of space, cover and broken sight lines.
Sweet spot: both do well at 76–81°F and pH 6–7 — aim there.
Side-by-side
| Wild-Type Betta | Cardinal Tetra | |
|---|---|---|
| Temperature | 76–82°F | 73–81°F |
| pH | 6–7.5 | 5–7 |
| Hardness (GH) | 2–12 dGH | 1–6 dGH |
| Adult size | 2.5" | 2" |
| Temperament | Semi-aggressive | Peaceful |
| Min tank | 10 gal | 15 gal |
Together, plan on at least 15 gallons.
How to make it work
- Keep a large, established shrimp colony in a heavily planted tank with moss and cover so enough survive to breed.
- Use a larger, well-decorated tank with sightline breaks, keep everyone well-fed, and add the calmer fish first.
Sort it with: GH remineraliser
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 Wild-Type Betta, Cardinal Tetra →Everything compatible with Wild-Type Betta · …with Cardinal Tetra