Keyhole Cichlid and Royal Gramma Compatibility Overview
Keyhole Cichlid and Royal Gramma are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Keyhole Cichlid wants 4.0โ7.5 and Royal Gramma wants 8.1โ8.4. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Keyhole Cichlid | Royal Gramma | Verdict |
|---|---|---|---|
| Temperature | 70โ82ยฐF | 72โ82ยฐF | โ 72โ82ยฐF |
| pH Range | 4.0โ7.5 | 8.1โ8.4 | โ No overlap |
| Temperament | peaceful | semi | โ ๏ธ Monitor |
| Adult Size | 4.3 in | 3.0 in | โ Similar |
| Min. Group | 2+ | 1+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Keyhole Cichlid โ Cleithracara maronii
The Keyhole Cichlid is a popular choice for beginners due to its relatively easy care and peaceful temperament. These fish are known for their distinct keyhole marking and vibrant coloration. They do well in a community tank with other peaceful species, but should be provided with plenty of hiding spots to feel secure.
โ Full Keyhole Cichlid care guide
Royal Gramma โ Gramma loreto
The Royal Gramma, known for its vibrant blue coloration, is a popular saltwater fish among beginners and experienced aquarists alike. It requires a well-maintained tank with plenty of swimming space and a moderate current. With a peaceful temperament and a relatively easy care routine, the Royal Gramma can be a great addition to a community tank.
Frequently Asked Questions
Can Keyhole Cichlid live with Royal Gramma?
Generally not recommended. Keyhole Cichlid and Royal Gramma are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Keyhole Cichlid wants 4.0โ7.5 and Royal Gramma wants 8.1โ8.4. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Keyhole Cichlid and Royal Gramma together?
A minimum of 55 gallons is recommended for keeping Keyhole Cichlid and Royal Gramma together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Keyhole Cichlid and Royal Gramma?
72โ82ยฐF โ inside Keyhole Cichlid's 70โ82ยฐF and Royal Gramma's 72โ82ยฐF.
Is a Keyhole Cichlid aggressive toward a Royal Gramma?
Keyhole Cichlid is peaceful and Royal Gramma is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Keyhole Cichlid and Royal Gramma
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 55 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 75 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 100 gal | Best when keeping larger schools or reducing territorial pressure. |