๐Ÿ  Fish Compatibility Guide

Can Peacock Cichlid and Rosy Barb Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โš ๏ธ Use Caution โ€” Compatibility Score: 52/100
52/100 โ€” Use Caution

Peacock Cichlid and Rosy Barb Compatibility Overview

Peacock Cichlid and Rosy Barb can potentially coexist, but the combination requires careful attention. Their ranges meet only at 73โ€“75ยฐF, which leaves no margin for a heater drifting or a warm room. 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 Peacock Cichlid and Rosy Barb
FactorPeacock CichlidRosy BarbVerdict
Temperature73โ€“84ยฐF61โ€“75ยฐFโš ๏ธ 73โ€“75ยฐF (narrow)
pH Range7.5โ€“9.06.0โ€“8.0โš ๏ธ 7.5โ€“8.0 (narrow)
Temperamentsemipeacefulโš ๏ธ Monitor
Adult Size5.1 in3.9 inโœ… Similar
Min. Group4+8+See below
Min. Tank Size75 gallons (for both species)โ€”

Compatibility Positives

Temperament risk is relatively low when normal group sizes are maintained.

Caution Points

Their ranges meet only at 73โ€“75ยฐF, which leaves no margin for a heater drifting or a warm room.
Their pH ranges overlap only partly, so aim for the shared band and keep it steady.

Species Profiles

Peacock Cichlid โ€” Aulonocara stuartgranti

Peacock Cichlid and Rosy Barb 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

Rosy Barb โ€” Pethia conchonius

Peacock Cichlid and Rosy Barb compatibility โ€” Rosy Barb

The Rosy Barb is a popular freshwater fish known for its vibrant coloration and peaceful nature. It is well-suited for community tanks with other non-aggressive species. They require a well-maintained environment and can be sensitive to water quality fluctuations. With proper care, they can thrive and add a splash of color to your aquarium.

โ†’ Full Rosy Barb care guide

Frequently Asked Questions

Can Peacock Cichlid live with Rosy Barb?

With significant caution and a larger tank. Peacock Cichlid and Rosy Barb can potentially coexist, but the combination requires careful attention. Their ranges meet only at 73โ€“75ยฐF, which leaves no margin for a heater drifting or a warm room. 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 Peacock Cichlid and Rosy Barb together?

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

What temperature suits both Peacock Cichlid and Rosy Barb?

73โ€“75ยฐF (narrow) โ€” inside Peacock Cichlid's 73โ€“84ยฐF and Rosy Barb's 61โ€“75ยฐF.

Is a Peacock Cichlid aggressive toward a Rosy Barb?

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

Related Compatibility Guides

Tank Size for Peacock Cichlid and Rosy Barb

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.