๐Ÿ  Fish Compatibility Guide

Can Corydoras and Peacock Cichlid Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โš ๏ธ Use Caution โ€” Compatibility Score: 69/100
69/100 โ€” Use Caution

Corydoras and Peacock Cichlid Compatibility Overview

Corydoras Catfish and Peacock Cichlid can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.

Compatibility factors for Corydoras Catfish and Peacock Cichlid
FactorCorydoras CatfishPeacock CichlidVerdict
Temperature70โ€“79ยฐF73โ€“84ยฐFโœ… 73โ€“79ยฐF
pH Range6.0โ€“8.07.5โ€“9.0โš ๏ธ 7.5โ€“8.0 (narrow)
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size2.5 in5.1 inโš ๏ธ 2.0ร— difference
Min. Group6+4+See below
Min. Tank Size75 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

Corydoras Catfish โ€” Corydoras spp.

Corydoras and Peacock Cichlid compatibility โ€” Corydoras Catfish

Armoured bottom-dwelling catfish that are peaceful with all non-aggressive species. Need fine sand substrate to protect delicate barbels.

โ†’ Full Corydoras Catfish care guide

Peacock Cichlid โ€” Aulonocara stuartgranti

Corydoras 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 Corydoras Catfish live with Peacock Cichlid?

With significant caution and a larger tank. Corydoras Catfish and Peacock Cichlid can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.

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

A minimum of 75 gallons is recommended for keeping Corydoras Catfish and Peacock Cichlid together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Corydoras Catfish and Peacock Cichlid?

73โ€“79ยฐF โ€” inside Corydoras Catfish's 70โ€“79ยฐF and Peacock Cichlid's 73โ€“84ยฐF.

Is a Corydoras Catfish aggressive toward a Peacock Cichlid?

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

Related Compatibility Guides

Tank Size for Corydoras and Peacock Cichlid

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

ScenarioTankWhen it applies
Minimum viable75 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community125 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup150 galBest when keeping larger schools or reducing territorial pressure.