Firefish Goby and Hillstream Loach Compatibility Overview
Firefish Goby and Hillstream Loach 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 8.1โ8.4 and Hillstream Loach wants 6.0โ7.5. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Firefish Goby | Hillstream Loach | Verdict |
|---|---|---|---|
| Temperature | 72โ82ยฐF | 68โ75ยฐF | โ ๏ธ 72โ75ยฐF (narrow) |
| pH Range | 8.1โ8.4 | 6.0โ7.5 | โ No overlap |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 3.0 in | 2.6 in | โ Similar |
| Min. Group | 1+ | 4+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Firefish Goby โ Nemateleotris magnifica
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
Hillstream Loach โ Sewellia lineolata
Sewellia lineolata, known as the Hillstream Loach, is a fascinating species for aquarists. These fish require a well-oxygenated, clear water environment with plenty of hiding spots. With a lifespan of 7 years, they are a long-term commitment. Their olive green color and slender body shape add a unique aesthetic to the tank.
Frequently Asked Questions
Can Firefish Goby live with Hillstream Loach?
Generally not recommended. Firefish Goby and Hillstream Loach 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 8.1โ8.4 and Hillstream Loach wants 6.0โ7.5. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Firefish Goby and Hillstream Loach together?
A minimum of 20 gallons is recommended for keeping Firefish Goby and Hillstream Loach together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Firefish Goby and Hillstream Loach?
72โ75ยฐF (narrow) โ inside Firefish Goby's 72โ82ยฐF and Hillstream Loach's 68โ75ยฐF.
Is a Firefish Goby aggressive toward a Hillstream Loach?
Firefish Goby is peaceful and Hillstream Loach is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Firefish Goby and Hillstream Loach
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 20 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 29 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 40 gal | Best when keeping larger schools or reducing territorial pressure. |