๐Ÿ  Fish Compatibility Guide

Can Firefish Goby 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

Firefish Goby and Serpae Tetra Compatibility Overview

Firefish Goby 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: Firefish Goby 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 Firefish Goby and Serpae Tetra
FactorFirefish GobySerpae TetraVerdict
Temperature72โ€“82ยฐF68โ€“82ยฐFโœ… 72โ€“82ยฐF
pH Range8.1โ€“8.45.0โ€“7.5โŒ No overlap
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size3.0 in1.6 inโœ… Similar
Min. Group1+10+See below
Min. Tank Size20 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: Firefish Goby wants 8.1โ€“8.4 and Serpae Tetra wants 5.0โ€“7.5.

Species Profiles

Firefish Goby โ€” Nemateleotris magnifica

Firefish Goby and Serpae Tetra compatibility โ€” Firefish Goby

The Firefish Goby is a popular choice for saltwater aquariums due to its vibrant colors and peaceful nature. These goby fish thrive in well-maintained tanks with plenty of live rock for them to explore. They are best kept in pairs or small groups and can be a great addition to a community tank with compatible species.

โ†’ Full Firefish Goby care guide

Serpae Tetra โ€” Hyphessobrycon eques

Firefish Goby 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 Firefish Goby live with Serpae Tetra?

Generally not recommended. Firefish Goby 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: Firefish Goby 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 Firefish Goby and Serpae Tetra together?

A minimum of 20 gallons is recommended for keeping Firefish Goby and Serpae Tetra together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Firefish Goby and Serpae Tetra?

72โ€“82ยฐF โ€” inside Firefish Goby's 72โ€“82ยฐF and Serpae Tetra's 68โ€“82ยฐF.

Is a Firefish Goby aggressive toward a Serpae Tetra?

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

Related Compatibility Guides

Tank Size for Firefish Goby and Serpae Tetra

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

ScenarioTankWhen it applies
Minimum viable20 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community29 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup55 galBest when keeping larger schools or reducing territorial pressure.