๐Ÿ  Fish Compatibility Guide

Can Foxface Rabbitfish and Serpae Tetra 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 Serpae Tetra Compatibility Overview

Foxface Rabbitfish and Serpae Tetra 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. Their pH ranges do not meet: Foxface Rabbitfish wants 8.1โ€“8.4 and Serpae Tetra wants 5.0โ€“7.5. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Foxface Rabbitfish and Serpae Tetra
FactorFoxface RabbitfishSerpae TetraVerdict
Temperature72โ€“82ยฐF68โ€“82ยฐFโœ… 72โ€“82ยฐF
pH Range8.1โ€“8.45.0โ€“7.5โŒ No overlap
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size9.0 in1.6 inโŒ 6ร— difference
Min. Group1+10+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.
Their pH ranges do not meet: Foxface Rabbitfish wants 8.1โ€“8.4 and Serpae Tetra wants 5.0โ€“7.5.

Species Profiles

Foxface Rabbitfish โ€” Siganus vulpinus

Foxface Rabbitfish and Serpae Tetra 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

Serpae Tetra โ€” Hyphessobrycon eques

Foxface Rabbitfish and Serpae Tetra compatibility โ€” Serpae Tetra

The Serpae Tetra is a popular freshwater fish known for its vibrant coloration and peaceful nature. It is well-suited for community tanks and can be a great addition to any aquarium. With its moderate activity level and easy care requirements, it is a suitable choice for beginners and experienced aquarists alike.

โ†’ Full Serpae Tetra care guide

Frequently Asked Questions

Can Foxface Rabbitfish live with Serpae Tetra?

Generally not recommended. Foxface Rabbitfish and Serpae Tetra 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. Their pH ranges do not meet: Foxface Rabbitfish wants 8.1โ€“8.4 and Serpae Tetra wants 5.0โ€“7.5. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Foxface Rabbitfish and Serpae Tetra together?

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

What temperature suits both Foxface Rabbitfish and Serpae Tetra?

72โ€“82ยฐF โ€” inside Foxface Rabbitfish's 72โ€“82ยฐF and Serpae Tetra's 68โ€“82ยฐF.

Is a Foxface Rabbitfish aggressive toward a Serpae Tetra?

Foxface Rabbitfish is peaceful and Serpae Tetra is semi. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Foxface Rabbitfish and Serpae Tetra

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.