๐Ÿ  Fish Compatibility Guide

Can Pea Puffer and Peacock Cichlid 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

Pea Puffer and Peacock Cichlid Compatibility Overview

Pea Puffer and Peacock Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Pea Puffer and Peacock Cichlid
FactorPea PufferPeacock CichlidVerdict
Temperature74โ€“82ยฐF73โ€“84ยฐFโœ… 74โ€“82ยฐF
pH Range7.0โ€“8.07.5โ€“9.0โš ๏ธ 7.5โ€“8.0 (narrow)
Temperamentsemisemiโš ๏ธ Monitor
Adult Size1 in5.1 inโŒ 5ร— difference
Min. Group1+4+See below
Min. Tank Size55 gallons (for both species)โ€”

Compatibility Positives

A stable shared temperature range is available.

Incompatibility Reasons

The adult size gap creates a meaningful predation risk.
Their pH ranges overlap only partly, so aim for the shared band and keep it steady.
Both are semi, so give them a larger, well-planted tank and watch how they settle in.

Species Profiles

Pea Puffer โ€” Carinotetraodon travancoricus

Pea Puffer and Peacock Cichlid compatibility โ€” Pea Puffer

World's smallest pufferfish โ€” intensely territorial and nippy despite tiny size. Will attack fins and eat shrimp and snails.

โ†’ Full Pea Puffer care guide

Peacock Cichlid โ€” Aulonocara stuartgranti

Pea Puffer 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 Pea Puffer live with Peacock Cichlid?

Generally not recommended. Pea Puffer and Peacock Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Pea Puffer and Peacock Cichlid together?

A minimum of 55 gallons is recommended for keeping Pea Puffer and Peacock Cichlid together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Pea Puffer and Peacock Cichlid?

74โ€“82ยฐF โ€” inside Pea Puffer's 74โ€“82ยฐF and Peacock Cichlid's 73โ€“84ยฐF.

Is a Pea Puffer aggressive toward a Peacock Cichlid?

The adult size gap creates a meaningful predation risk.

Related Compatibility Guides

Tank Size for Pea Puffer and Peacock Cichlid

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

ScenarioTankWhen it applies
Minimum viable64 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community90 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup125 galBest when keeping larger schools or reducing territorial pressure.