Can Common Goldfish live with Otocinclus? With caution
Large size gap — watch that Common Goldfish doesn't bully Otocinclus.
Side by side
| 🐠 Common Goldfish | 🐡 Otocinclus | |
| Adult size | 12" | 1.6" |
| Min tank | 40 gal | 10 gal |
| Temperature | 60–72°F | 72–79°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 Otocinclus.
- Provide ample swimming space, sight breaks, and matched water parameters.