๐Ÿ  Fish Compatibility Guide

Can Glass Catfish and Keyhole Cichlid Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 92/100
92/100 โ€” Compatible

Glass Catfish and Keyhole Cichlid Compatibility Overview

Glass Catfish and Keyhole Cichlid 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 Glass Catfish and Keyhole Cichlid
FactorGlass CatfishKeyhole CichlidVerdict
Temperature68โ€“79ยฐF70โ€“82ยฐFโœ… 70โ€“79ยฐF
pH Range4.0โ€“7.04.0โ€“7.5โœ… 4.0โ€“7.0
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size2.6 in4.3 inโœ… Similar
Min. Group6+2+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

Glass Catfish โ€” Kryptopterus vitreolus

Glass Catfish and Keyhole Cichlid compatibility โ€” Glass Catfish

The Glass Catfish, Kryptopterus vitreolus, is a popular freshwater aquarium fish known for its unique, translucent body and iridescent scales. It is a peaceful species that thrives in groups and is suitable for beginners due to its hardy nature. These catfish are bottom-dwellers and require a well-decorated tank with plenty of swimming space.

โ†’ Full Glass Catfish care guide

Keyhole Cichlid โ€” Cleithracara maronii

Glass Catfish and Keyhole Cichlid 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

Frequently Asked Questions

Can Glass Catfish live with Keyhole Cichlid?

Yes, in a well-planned setup. Glass Catfish and Keyhole Cichlid 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 Glass Catfish and Keyhole Cichlid together?

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

What temperature suits both Glass Catfish and Keyhole Cichlid?

70โ€“79ยฐF โ€” inside Glass Catfish's 68โ€“79ยฐF and Keyhole Cichlid's 70โ€“82ยฐF.

Is a Glass Catfish aggressive toward a Keyhole Cichlid?

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

Related Compatibility Guides

Tank Size for Glass Catfish and Keyhole Cichlid

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.