๐Ÿ  Fish Compatibility Guide

Can Clown Loach and Firefish Goby 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

Clown Loach and Firefish Goby Compatibility Overview

Clown Loach and Firefish Goby 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 Clown Loach and Firefish Goby
FactorClown LoachFirefish GobyVerdict
Temperature77โ€“86ยฐF72โ€“82ยฐFโœ… 77โ€“82ยฐF
pH Range6.0โ€“7.58.1โ€“8.4โŒ No overlap
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size12 in3.0 inโŒ 4ร— difference
Min. Group5+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: Clown Loach wants 6.0โ€“7.5 and Firefish Goby wants 8.1โ€“8.4.

Species Profiles

Clown Loach โ€” Chromobotia macracanthus

Clown Loach and Firefish Goby compatibility โ€” Clown Loach

Striking striped loach that grows very large. Peaceful with fish but will eat shrimp, snails and tiny fish.

โ†’ Full Clown Loach care guide

Firefish Goby โ€” Nemateleotris magnifica

Clown Loach and Firefish Goby 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

Frequently Asked Questions

Can Clown Loach live with Firefish Goby?

Generally not recommended. Clown Loach and Firefish Goby 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 Clown Loach and Firefish Goby together?

A minimum of 100 gallons is recommended for keeping Clown Loach and Firefish Goby together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Clown Loach and Firefish Goby?

77โ€“82ยฐF โ€” inside Clown Loach's 77โ€“86ยฐF and Firefish Goby's 72โ€“82ยฐF.

Is a Clown Loach aggressive toward a Firefish Goby?

The adult size gap creates a meaningful predation risk.

Related Compatibility Guides

Tank Size for Clown Loach and Firefish Goby

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

ScenarioTankWhen it applies
Minimum viable100 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community150 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup220 galBest when keeping larger schools or reducing territorial pressure.