Can Jack Dempsey Live With Royal Gramma?
❌Not Compatible
Incompatible pH. Jack Dempsey Cichlid needs 6.5–8.0, Royal Gramma needs 8.1–8.4.
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Parameter Comparison
| Parameter | Jack Dempsey | Royal Gramma | Overlap |
|---|---|---|---|
| Temperature | 72–86°F | 75–79°F | 75–80°F ✓ |
| pH Range | 6.5–7.5 | 8.1–8.4 | No overlap ✗ |
| Temperament | aggressive | peaceful | Aggression risk ✗ |
| Max Size | 9.8" | 3.1" | Size mismatch ✗ |
| Min Tank Size | 53 gal | 30 gal | 55 gal minimum together |
| Diet | Omnivore | Carnivore | — |
| Care Level | intermediate | beginner | — |
Species Profiles
Jack Dempsey
Rocio octofasciata
intermediateaggressive53+ gal
The Jack Dempsey (Rocio octofasciata) is a intermediate freshwater species known for its dark brown-purple, blue-green spots coloration. Named after the boxer. Mid to Bottom.
Full care guide →Royal Gramma
Gramma loreto
beginnerpeaceful30+ gal
The Royal Gramma (Gramma loreto) is a beginner saltwater species known for its purple (front), yellow (rear) coloration. Purple/yellow bicolor. Bottom to Mid.
Full care guide →Other Compatible Tank Mates
For Jack Dempsey:
For Royal Gramma:
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