Choosing Clown Knifefish Tank Mates
Good Clown Knifefish tank mates share the same temperature and pH window, will not be eaten by (or eat) the Clown Knifefish, and do not compete for the same swimming zone or feeding time. Each pair guide below scores those factors from 0 to 100 and gives the minimum tank size for keeping both species together.
Start with the highest-scoring pairs; anything under 45 is listed so you know what to avoid, not as a recommendation.
Care baseline
The Clown Knifefish is a unique and visually striking species known for its slender body and distinctive coloration. It is a solitary fish that requires a spacious tank to thrive. With a moderate activity level and low aggression, it can be a suitable addition to a community tank with similarly peaceful species.
| Temperature | 68–82°F |
| pH | 6.0–8.0 |
| Adult size | 39.4 in |
| Minimum group | 1 |