๐Ÿ  Fish Compatibility Guide

Can Peacock Cichlid and Royal Gramma Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 0/100
0/100 โ€” Not Compatible

Peacock Cichlid and Royal Gramma Compatibility Overview

Peacock 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 usable pH overlap is narrow and requires stable, tested water. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Peacock Cichlid and Royal Gramma
FactorPeacock CichlidRoyal GrammaVerdict
Temperature73โ€“84ยฐF72โ€“82ยฐFโœ… 73โ€“82ยฐF
pH Range7.5โ€“9.08.1โ€“8.4โš ๏ธ 8.1โ€“8.4 (narrow)
Temperamentsemisemiโš ๏ธ Monitor
Adult Size5.1 in3.0 inโœ… Similar
Min. Group4+1+See below
Min. Tank Size55 gallons (for both species)โ€”

Compatibility Positives

A stable shared temperature range is available.

Incompatibility Reasons

One of these is a marine species and the other is not; they cannot share one aquarium.
Their usable pH overlap is narrow and requires stable, tested water.
Both are semi, so give them a larger, well-planted tank and watch how they settle in.

Species Profiles

Peacock Cichlid โ€” Aulonocara stuartgranti

Peacock Cichlid and Royal Gramma compatibility โ€” Peacock Cichlid

The Peacock Cichlid, Aulonocara nyassae, is a stunning fish with vibrant blue and yellow colors. These fish are known for their aggression and require a mature and well-maintained tank. They are best kept in pairs or in a species-specific tank. Careful attention must be given to water parameters and tank setup to ensure their health and well-being.

โ†’ Full Peacock Cichlid care guide

Royal Gramma โ€” Gramma loreto

Peacock Cichlid and Royal Gramma compatibility โ€” Royal Gramma

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.

โ†’ Full Royal Gramma care guide

Frequently Asked Questions

Can Peacock Cichlid live with Royal Gramma?

Generally not recommended. Peacock 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 usable pH overlap is narrow and requires stable, tested water. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Peacock Cichlid and Royal Gramma together?

A minimum of 55 gallons is recommended for keeping Peacock Cichlid and Royal Gramma together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Peacock Cichlid and Royal Gramma?

73โ€“82ยฐF โ€” inside Peacock Cichlid's 73โ€“84ยฐF and Royal Gramma's 72โ€“82ยฐF.

Is a Peacock Cichlid aggressive toward a Royal Gramma?

Peacock Cichlid is semi and Royal Gramma is semi. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Peacock Cichlid and Royal Gramma

Use the scenario that matches the actual group sizes and temperament you plan to keep.

ScenarioTankWhen it applies
Minimum viable64 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community90 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup125 galBest when keeping larger schools or reducing territorial pressure.