Can Cardinal Tetra live with Platy? With caution
Preferred water chemistry differs — manageable but not ideal.
Side by side
| 🐟 Cardinal Tetra | 🐠 Platy | |
| Adult size | 2" | 2.5" |
| Min tank | 15 gal | 10 gal |
| Temperature | 73–81°F | 70–80°F |
| pH | 4.5–6.5 | 7–8.2 |
| Temperament | Peaceful | Peaceful |
How to make it work
- Preferred water chemistry differs — manageable but not ideal.
- Provide ample swimming space, sight breaks, and matched water parameters.