๐Ÿ  Fish Compatibility Guide

Can Firefish Goby and Peppered Cory 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 Peppered Cory Compatibility Overview

Firefish Goby and Peppered Cory 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 Peppered Cory wants 6.0โ€“7.0. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Firefish Goby and Peppered Cory
FactorFirefish GobyPeppered CoryVerdict
Temperature72โ€“82ยฐF72โ€“79ยฐFโœ… 72โ€“79ยฐF
pH Range8.1โ€“8.46.0โ€“7.0โŒ No overlap
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size3.0 in2.8 inโœ… Similar
Min. Group1+6+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 Peppered Cory wants 6.0โ€“7.0.

Species Profiles

Firefish Goby โ€” Nemateleotris magnifica

Firefish Goby and Peppered Cory 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

Peppered Cory โ€” Corydoras paleatus

Firefish Goby and Peppered Cory compatibility โ€” Peppered Cory

The Peppered Cory is a popular freshwater fish known for its peaceful nature and unique appearance. They are suitable for beginners and can thrive in a community tank. These fish are small, reaching up to 7 cm in size, and are easily recognizable by their dark brown bodies with white spots.

โ†’ Full Peppered Cory care guide

Frequently Asked Questions

Can Firefish Goby live with Peppered Cory?

Generally not recommended. Firefish Goby and Peppered Cory 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 Peppered Cory wants 6.0โ€“7.0. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Firefish Goby and Peppered Cory together?

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

What temperature suits both Firefish Goby and Peppered Cory?

72โ€“79ยฐF โ€” inside Firefish Goby's 72โ€“82ยฐF and Peppered Cory's 72โ€“79ยฐF.

Is a Firefish Goby aggressive toward a Peppered Cory?

Firefish Goby is peaceful and Peppered Cory is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Firefish Goby and Peppered Cory

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.