๐Ÿ  Fish Compatibility Guide

Can Clown Pleco and Keyhole Cichlid Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 95/100
95/100 โ€” Compatible

Clown Pleco and Keyhole Cichlid Compatibility Overview

Clown Pleco 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 Clown Pleco and Keyhole Cichlid
FactorClown PlecoKeyhole CichlidVerdict
Temperature73โ€“82ยฐF70โ€“82ยฐFโœ… 73โ€“82ยฐF
pH Range6.5โ€“7.84.0โ€“7.5โœ… 6.5โ€“7.5
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size3.5 in4.3 inโœ… Similar
Min. Group1+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

Clown Pleco โ€” Panaqolus maccus

Clown Pleco and Keyhole Cichlid compatibility โ€” Clown Pleco

The Clown Pleco is a popular freshwater fish known for its dark brown body with light spots and long, flattened body shape. They are peaceful and make great community fish for beginners. These plecos are moderate in activity level and prefer a tank with plenty of hiding spots.

โ†’ Full Clown Pleco care guide

Keyhole Cichlid โ€” Cleithracara maronii

Clown Pleco 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 Clown Pleco live with Keyhole Cichlid?

Yes, in a well-planned setup. Clown Pleco 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 Clown Pleco and Keyhole Cichlid together?

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

What temperature suits both Clown Pleco and Keyhole Cichlid?

73โ€“82ยฐF โ€” inside Clown Pleco's 73โ€“82ยฐF and Keyhole Cichlid's 70โ€“82ยฐF.

Is a Clown Pleco aggressive toward a Keyhole Cichlid?

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

Related Compatibility Guides

Tank Size for Clown Pleco 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 setup100 galBest when keeping larger schools or reducing territorial pressure.