Can Jack Dempsey Live With Oscar?
Jack Dempsey and Oscar CAN coexist, but with some risks. Careful setup and monitoring required.
Detailed Analysis
Known Pairing
✓ Compatible
Jack Dempsey and Oscar are known to coexist well.
Temperature
✓ Compatible
Good temperature overlap at 74–81°F.
pH
✓ Compatible
Good pH overlap at 6.5–7.5.
Size
✓ Compatible
Compatible sizes (10" and 14").
Temperament
⚠ Use Caution
Jack Dempsey (aggressive) may have issues with Oscar (aggressive). Monitor closely if attempting.
Swim Level
⚠ Use Caution
Both fish occupy the middle level and Jack Dempsey is territorial. Provide plenty of space and hiding spots.
Tank Requirements
Minimum tank size for this combination: 93 gallons
| Parameter | Jack Dempsey | Oscar |
|---|---|---|
| Temperature | 72–86°F | 74–81°F |
| pH | 6.5–7.5 | 6–7.5 |
| Max Size | 10" | 14" |
| Temperament | Aggressive | Aggressive |
| Swim Level | Middle | Middle |
| Min Tank | 55 gal | 75 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.