Can Common Goldfish live with Harlequin Rasbora? With caution
Large size gap — watch that Common Goldfish doesn't bully Harlequin Rasbora.
Side by side
| 🐠 Common Goldfish | 🐟 Harlequin Rasbora | |
| Adult size | 12" | 2" |
| Min tank | 40 gal | 15 gal |
| Temperature | 60–72°F | 72–80°F |
| pH | 6.5–8 | 6–7.5 |
| Temperament | Peaceful | Peaceful |
How to make it work
- Large size gap — watch that Common Goldfish doesn't bully Harlequin Rasbora.
- Provide ample swimming space, sight breaks, and matched water parameters.