๐Ÿ  Fish Compatibility Guide

Can Keyhole Cichlid and Platy Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 82/100
82/100 โ€” Compatible

Keyhole Cichlid and Platy Compatibility Overview

Keyhole Cichlid and Platy can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Keyhole Cichlid and Platy
FactorKeyhole CichlidPlatyVerdict
Temperature70โ€“82ยฐF65โ€“80ยฐFโœ… 70โ€“80ยฐF
pH Range4.0โ€“7.57.0โ€“8.5โš ๏ธ 7.0โ€“7.5 (narrow)
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size4.3 in2.5 inโœ… Similar
Min. Group2+3+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

Keyhole Cichlid โ€” Cleithracara maronii

Keyhole Cichlid and Platy compatibility โ€” Keyhole Cichlid

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

Platy โ€” Xiphophorus maculatus

Keyhole Cichlid and Platy compatibility โ€” Platy

Hardy livebearers that are among the easiest fish to keep. Peaceful with virtually all community species. Prolific breeders.

โ†’ Full Platy care guide

Frequently Asked Questions

Can Keyhole Cichlid live with Platy?

Yes, in a well-planned setup. Keyhole Cichlid and Platy can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the 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 Keyhole Cichlid and Platy together?

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

What temperature suits both Keyhole Cichlid and Platy?

70โ€“80ยฐF โ€” inside Keyhole Cichlid's 70โ€“82ยฐF and Platy's 65โ€“80ยฐF.

Is a Keyhole Cichlid aggressive toward a Platy?

Keyhole Cichlid is peaceful and Platy is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Keyhole Cichlid and Platy

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

ScenarioTankWhen it applies
Minimum viable55 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community75 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup125 galBest when keeping larger schools or reducing territorial pressure.