Firefish Goby and Silver Dollar Compatibility Overview
Firefish Goby and Silver Dollar 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 Silver Dollar wants 6.0โ7.0. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Firefish Goby | Silver Dollar | Verdict |
|---|---|---|---|
| Temperature | 72โ82ยฐF | 75โ82ยฐF | โ 75โ82ยฐF |
| pH Range | 8.1โ8.4 | 6.0โ7.0 | โ No overlap |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 3.0 in | 5.9 in | โ Similar |
| Min. Group | 1+ | 5+ | See below |
| Min. Tank Size | 75 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
Silver Dollar โ Metynnis argenteus
The Metynnis argenteus, known as the Silver Dollar fish, is a popular freshwater species with a distinctive silver color and disc-shaped body. They require a spacious tank and are best kept in groups to prevent bullying. Their peaceful nature makes them suitable for community tanks, but they are not known to school.
Frequently Asked Questions
Can Firefish Goby live with Silver Dollar?
Generally not recommended. Firefish Goby and Silver Dollar 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 Silver Dollar wants 6.0โ7.0. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Firefish Goby and Silver Dollar together?
A minimum of 75 gallons is recommended for keeping Firefish Goby and Silver Dollar together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Firefish Goby and Silver Dollar?
75โ82ยฐF โ inside Firefish Goby's 72โ82ยฐF and Silver Dollar's 75โ82ยฐF.
Is a Firefish Goby aggressive toward a Silver Dollar?
Firefish Goby is peaceful and Silver Dollar is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Firefish Goby and Silver Dollar
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 75 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 125 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 150 gal | Best when keeping larger schools or reducing territorial pressure. |