Can Cardinal Tetra live with Frontosa? Not recommended
Preferred water chemistry differs — manageable but not ideal.
Side by side
| 🐟 Cardinal Tetra | 🐡 Frontosa | |
| Adult size | 2" | 12" |
| Min tank | 15 gal | 75 gal |
| Temperature | 73–81°F | 74–82°F |
| pH | 4.5–6.5 | 7.8–9 |
| Temperament | Peaceful | Semi-aggressive |
Why
- Preferred water chemistry differs — manageable but not ideal.
- Frontosa is large or predatory enough to eat or harass Cardinal Tetra.