๐Ÿ  Fish Compatibility Guide

Can Foxface Rabbitfish and Silver Arowana Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 0/100
0/100 โ€” Not Compatible

Foxface Rabbitfish and Silver Arowana Compatibility Overview

Foxface Rabbitfish and Silver Arowana are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. The adult size gap creates a meaningful predation risk. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Foxface Rabbitfish and Silver Arowana
FactorFoxface RabbitfishSilver ArowanaVerdict
Temperature72โ€“82ยฐF68โ€“86ยฐFโœ… 72โ€“82ยฐF
pH Range8.1โ€“8.45.0โ€“7.5โŒ No overlap
TemperamentpeacefulaggressiveโŒ Risk
Adult Size9.0 in31.5 inโš ๏ธ 3.5ร— difference
Min. Group1+1+See below
Min. Tank Size100 gallons (for both species)โ€”

Compatibility Positives

A stable shared temperature range is available.

Incompatibility Reasons

One of these is a marine species and the other is not; they cannot share one aquarium.
The adult size gap creates a meaningful predation risk.
Their pH ranges do not meet: Foxface Rabbitfish wants 8.1โ€“8.4 and Silver Arowana wants 5.0โ€“7.5.
Foxface Rabbitfish is peaceful and Silver Arowana is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely.

Species Profiles

Foxface Rabbitfish โ€” Siganus vulpinus

Foxface Rabbitfish and Silver Arowana compatibility โ€” Foxface Rabbitfish

The Foxface Rabbitfish is a vibrant and peaceful addition to the marine aquarium. With its striking yellow coloration and dark spots, it adds a splash of color to the tank. They are known for their gregarious nature and can be kept in groups of 2-3. This species is suitable for beginners and intermediate aquarists.

โ†’ Full Foxface Rabbitfish care guide

Silver Arowana โ€” Osteoglossum bicirrhosum

Foxface Rabbitfish 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 Foxface Rabbitfish live with Silver Arowana?

Generally not recommended. Foxface Rabbitfish and Silver Arowana are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. The adult size gap creates a meaningful predation risk. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Foxface Rabbitfish and Silver Arowana together?

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

What temperature suits both Foxface Rabbitfish and Silver Arowana?

72โ€“82ยฐF โ€” inside Foxface Rabbitfish's 72โ€“82ยฐF and Silver Arowana's 68โ€“86ยฐF.

Is a Foxface Rabbitfish aggressive toward a Silver Arowana?

The adult size gap creates a meaningful predation risk.

Related Compatibility Guides

Tank Size for Foxface Rabbitfish 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.