๐Ÿ  Fish Compatibility Guide

Can Peacock Cichlid and Silver Arowana 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 Silver Arowana Compatibility Overview

Peacock Cichlid and Silver Arowana 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 Silver Arowana
FactorPeacock CichlidSilver ArowanaVerdict
Temperature73โ€“84ยฐF68โ€“86ยฐFโœ… 73โ€“84ยฐF
pH Range7.5โ€“9.05.0โ€“7.5โš ๏ธ 7.5โ€“7.5 (narrow)
TemperamentsemiaggressiveโŒ Risk
Adult Size5.1 in31.5 inโŒ 6ร— difference
Min. Group4+1+See below
Min. Tank Size100 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 usable pH overlap is narrow and requires stable, tested water.
Peacock Cichlid is semi and Silver Arowana is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely.

Species Profiles

Peacock Cichlid โ€” Aulonocara stuartgranti

Peacock Cichlid and Silver Arowana 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

Silver Arowana โ€” Osteoglossum bicirrhosum

Peacock Cichlid and Silver Arowana compatibility โ€” Silver Arowana

The Silver Arowana is a majestic and unique fish known for its striking appearance and size. It is a large, predatory fish that requires a spacious tank and specific water conditions. While not a community fish, it can be kept with compatible, larger species. They are sensitive to stress and require careful water quality management.

โ†’ Full Silver Arowana care guide

Frequently Asked Questions

Can Peacock Cichlid live with Silver Arowana?

Generally not recommended. Peacock Cichlid and Silver Arowana 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 Silver Arowana together?

A minimum of 100 gallons is recommended for keeping Peacock Cichlid and Silver Arowana together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Peacock Cichlid and Silver Arowana?

73โ€“84ยฐF โ€” inside Peacock Cichlid's 73โ€“84ยฐF and Silver Arowana's 68โ€“86ยฐF.

Is a Peacock Cichlid aggressive toward a Silver Arowana?

The adult size gap creates a meaningful predation risk.

Related Compatibility Guides

Tank Size for Peacock Cichlid and Silver Arowana

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

ScenarioTankWhen it applies
Minimum viable250 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community350 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup450 galBest when keeping larger schools or reducing territorial pressure.