๐Ÿ  Fish Compatibility Guide

Can Peacock Cichlid and Pygmy Corydoras Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 32/100
32/100 โ€” Not Compatible

Peacock Cichlid and Pygmy Corydoras Compatibility Overview

Peacock Cichlid and Pygmy Corydoras are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their usable pH overlap is narrow and requires stable, tested water. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Peacock Cichlid and Pygmy Corydoras
FactorPeacock CichlidPygmy CorydorasVerdict
Temperature73โ€“84ยฐF72โ€“79ยฐFโœ… 73โ€“79ยฐF
pH Range7.5โ€“9.06.0โ€“7.5โš ๏ธ 7.5โ€“7.5 (narrow)
Temperamentsemipeacefulโš ๏ธ Monitor
Adult Size5.1 in1 inโŒ 5ร— difference
Min. Group4+6+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.

Incompatibility Reasons

The adult size gap creates a meaningful predation risk.
Their usable pH overlap is narrow and requires stable, tested water.

Species Profiles

Peacock Cichlid โ€” Aulonocara stuartgranti

Peacock Cichlid and Pygmy Corydoras 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

Pygmy Corydoras โ€” Corydoras pygmaeus

Peacock Cichlid and Pygmy Corydoras compatibility โ€” Pygmy Corydoras

Tiny armoured catfish that school in open water as well as on the substrate. Peaceful with all non-aggressive species.

โ†’ Full Pygmy Corydoras care guide

Frequently Asked Questions

Can Peacock Cichlid live with Pygmy Corydoras?

Generally not recommended. Peacock Cichlid and Pygmy Corydoras are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their usable pH overlap is narrow and requires stable, tested water. Review the behavior and water details before deciding whether to attempt the pairing.

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

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

What temperature suits both Peacock Cichlid and Pygmy Corydoras?

73โ€“79ยฐF โ€” inside Peacock Cichlid's 73โ€“84ยฐF and Pygmy Corydoras's 72โ€“79ยฐF.

Is a Peacock Cichlid aggressive toward a Pygmy Corydoras?

The adult size gap creates a meaningful predation risk.

Related Compatibility Guides

Tank Size for Peacock Cichlid and Pygmy Corydoras

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.