๐Ÿ  Fish Compatibility Guide

Can Keyhole Cichlid and X Ray Tetra Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 90/100
90/100 โ€” Compatible

Keyhole Cichlid and X Ray Tetra Compatibility Overview

Keyhole Cichlid and X Ray Tetra 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 X Ray Tetra
FactorKeyhole CichlidX Ray TetraVerdict
Temperature70โ€“82ยฐF72โ€“82ยฐFโœ… 72โ€“82ยฐF
pH Range4.0โ€“7.56.0โ€“7.5โœ… 6.0โ€“7.5
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size4.3 in1.8 inโš ๏ธ 2.4ร— difference
Min. Group2+6+See below
Min. Tank Size55 gallons (for both species)โ€”

Compatibility Positives

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

Caution Points

No major compatibility issues identified for this pair.

Species Profiles

Keyhole Cichlid โ€” Cleithracara maronii

Keyhole Cichlid and X Ray Tetra 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

X Ray Tetra โ€” Pristella maxillaris

Keyhole Cichlid and X Ray Tetra compatibility โ€” X Ray Tetra

The Pristella maxillaris, also known as the X-Ray Tetra, is a popular freshwater fish known for its unique appearance and peaceful nature. They are slender and iridescent, with a clear, almost x-ray-like body. They are best kept in groups of 6 or more and thrive in well-planted tanks with a moderate water flow.

โ†’ Full X Ray Tetra care guide

Frequently Asked Questions

Can Keyhole Cichlid live with X Ray Tetra?

Yes, in a well-planned setup. Keyhole Cichlid and X Ray Tetra 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 X Ray Tetra together?

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

What temperature suits both Keyhole Cichlid and X Ray Tetra?

72โ€“82ยฐF โ€” inside Keyhole Cichlid's 70โ€“82ยฐF and X Ray Tetra's 72โ€“82ยฐF.

Is a Keyhole Cichlid aggressive toward a X Ray Tetra?

Keyhole Cichlid is peaceful and X Ray Tetra is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Keyhole Cichlid and X Ray Tetra

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.