Can Common Pleco live with Jack Dempsey? With caution
Aggressive plus semi-aggressive pairing — watch for territorial disputes.
Side by side
| 🐡 Common Pleco | 🐡 Jack Dempsey | |
| Adult size | 18" | 10" |
| Min tank | 125 gal | 55 gal |
| Temperature | 72–82°F | 72–86°F |
| pH | 6.5–7.8 | 6.5–8 |
| Temperament | Semi-aggressive | Aggressive |
How to make it work
- Aggressive plus semi-aggressive pairing — watch for territorial disputes.
- Provide ample swimming space, sight breaks, and matched water parameters.