๐Ÿ  Fish Compatibility Guide

Can Fire Eel and Foxface Rabbitfish 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

Fire Eel and Foxface Rabbitfish Compatibility Overview

Fire Eel and Foxface Rabbitfish 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 Fire Eel and Foxface Rabbitfish
FactorFire EelFoxface RabbitfishVerdict
Temperature75โ€“82ยฐF72โ€“82ยฐFโœ… 75โ€“82ยฐF
pH Range6.0โ€“7.08.1โ€“8.4โŒ No overlap
Temperamentsemipeacefulโš ๏ธ Monitor
Adult Size39.4 in9.0 inโŒ 4ร— difference
Min. Group1+1+See below
Min. Tank Size100 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

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: Fire Eel wants 6.0โ€“7.0 and Foxface Rabbitfish wants 8.1โ€“8.4.

Species Profiles

Fire Eel โ€” Mastacembelus erythrotaenia

Fire Eel and Foxface Rabbitfish compatibility โ€” Fire Eel

The Fire Eel is a stunning, red-bottomed species that requires a spacious tank. They are peaceful bottom feeders and do best in a well-planted, mature aquarium. With a moderate activity level, they can be a great addition to a community tank, but their size and diet may be incompatible with smaller fish.

โ†’ Full Fire Eel care guide

Foxface Rabbitfish โ€” Siganus vulpinus

Fire Eel and Foxface Rabbitfish 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

Frequently Asked Questions

Can Fire Eel live with Foxface Rabbitfish?

Generally not recommended. Fire Eel and Foxface Rabbitfish 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 Fire Eel and Foxface Rabbitfish together?

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

What temperature suits both Fire Eel and Foxface Rabbitfish?

75โ€“82ยฐF โ€” inside Fire Eel's 75โ€“82ยฐF and Foxface Rabbitfish's 72โ€“82ยฐF.

Is a Fire Eel aggressive toward a Foxface Rabbitfish?

The adult size gap creates a meaningful predation risk.

Related Compatibility Guides

Tank Size for Fire Eel and Foxface Rabbitfish

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

ScenarioTankWhen it applies
Minimum viable125 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community180 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup300 galBest when keeping larger schools or reducing territorial pressure.