๐Ÿ  Fish Compatibility Guide

Can Guppy and Peacock Cichlid Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 77/100
77/100 โ€” Compatible

Guppy and Peacock Cichlid Compatibility Overview

Guppy and Peacock Cichlid can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Guppy is peaceful and Peacock Cichlid is semi, so give them room and cover rather than assuming they will ignore each other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Guppy and Peacock Cichlid
FactorGuppyPeacock CichlidVerdict
Temperature72โ€“82ยฐF73โ€“84ยฐFโœ… 73โ€“82ยฐF
pH Range6.8โ€“8.57.5โ€“9.0โœ… 7.5โ€“8.5
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size2.5 in5.1 inโš ๏ธ 2.0ร— difference
Min. Group3+4+See below
Min. Tank Size55 gallons (for both species)โ€”

Compatibility Positives

A stable shared temperature range is available.
Temperament risk is relatively low when normal group sizes are maintained.

Caution Points

Their pH ranges overlap only partly, so aim for the shared band and keep it steady.

Species Profiles

Guppy โ€” Poecilia reticulata

Guppy and Peacock Cichlid compatibility โ€” Guppy

Hardy and colourful livebearers. Males' long flowing tails make them targets for fin-nipping species. Very prolific breeders.

โ†’ Full Guppy care guide

Peacock Cichlid โ€” Aulonocara stuartgranti

Guppy and Peacock Cichlid 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

Frequently Asked Questions

Can Guppy live with Peacock Cichlid?

Yes, in a well-planned setup. Guppy and Peacock Cichlid can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Guppy is peaceful and Peacock Cichlid is semi, so give them room and cover rather than assuming they will ignore each other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.

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

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

What temperature suits both Guppy and Peacock Cichlid?

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

Is a Guppy aggressive toward a Peacock Cichlid?

Guppy is peaceful and Peacock Cichlid is semi. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Guppy and Peacock Cichlid

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.