Blue Tang and Silver Dollar Compatibility Overview
Blue Tang 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: Blue Tang 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 | Blue Tang | Silver Dollar | Verdict |
|---|---|---|---|
| Temperature | 72โ82ยฐF | 75โ82ยฐF | โ 75โ82ยฐF |
| pH Range | 8.1โ8.4 | 6.0โ7.0 | โ No overlap |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 12.0 in | 5.9 in | โ ๏ธ 2.0ร difference |
| Min. Group | 1+ | 5+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Blue Tang โ Paracanthurus hepatus
The Blue Tang is a popular saltwater fish known for its vibrant blue color and yellow stripes. These fish are generally peaceful and can be kept in a community tank with other non-aggressive species. They require a well-maintained, spacious tank with plenty of swimming space and hiding spots.
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 Blue Tang live with Silver Dollar?
Generally not recommended. Blue Tang 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: Blue Tang 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 Blue Tang and Silver Dollar together?
A minimum of 100 gallons is recommended for keeping Blue Tang and Silver Dollar together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Blue Tang and Silver Dollar?
75โ82ยฐF โ inside Blue Tang's 72โ82ยฐF and Silver Dollar's 75โ82ยฐF.
Is a Blue Tang aggressive toward a Silver Dollar?
Blue Tang is semi and Silver Dollar is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Blue Tang 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 | 180 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 300 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 350 gal | Best when keeping larger schools or reducing territorial pressure. |