Can Jack Dempsey Cichlid Live With Royal Gramma?
Incompatible pH. Jack Dempsey Cichlid needs 6.5–8.0, Royal Gramma needs 8.1–8.4.
Parameter Comparison
| Parameter | Jack Dempsey Cichlid | Royal Gramma | Overlap |
|---|---|---|---|
| Temperature | 72–86°F | 75–80°F | 75–80°F ✓ |
| pH Range | 6.5–8 | 8.1–8.4 | No overlap ✗ |
| Temperament | aggressive | peaceful | Aggression risk ✗ |
| Max Size | 10" | 3" | Size mismatch ✗ |
| Min Tank Size | 55 gal | 20 gal | 55 gal minimum together |
| Diet | Carnivore | Carnivore | — |
| Care Level | intermediate | beginner | — |
Species Profiles
Jack Dempsey Cichlid
Rocio octofasciata
Named after the legendary boxer, Jack Dempsey cichlids are large, territorial Central American cichlids with iridescent blue-green spangles across their dark body. They are aggressive, intelligent, and interactive — many owners report them coming to the glass to greet them. The electric blue Jack Dempsey variant is significantly less aggressive and more colorful.
Full care guide →Royal Gramma
Gramma loreto
The royal gramma is one of the most stunning and beginner-friendly saltwater fish. Its front half is vivid purple transitioning to bright yellow on the back — a color combination unmatched in the marine world. They are hardy, disease-resistant, reef-safe, and stay small. Often considered one of the top 3 beginner saltwater fish alongside clownfish and firefish.
Full care guide →