Royal Gramma and Tiger Barb Compatibility Overview
Royal Gramma and Tiger Barb 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: Royal Gramma wants 8.1โ8.4 and Tiger Barb wants 6.0โ8.0. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Royal Gramma | Tiger Barb | Verdict |
|---|---|---|---|
| Temperature | 72โ82ยฐF | 68โ79ยฐF | โ 72โ79ยฐF |
| pH Range | 8.1โ8.4 | 6.0โ8.0 | โ No overlap |
| Temperament | semi | semi | โ ๏ธ Monitor |
| Adult Size | 3.0 in | 2.75 in | โ Similar |
| Min. Group | 1+ | 6+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Royal Gramma โ Gramma loreto
The Royal Gramma, known for its vibrant blue coloration, is a popular saltwater fish among beginners and experienced aquarists alike. It requires a well-maintained tank with plenty of swimming space and a moderate current. With a peaceful temperament and a relatively easy care routine, the Royal Gramma can be a great addition to a community tank.
โ Full Royal Gramma care guide
Tiger Barb โ Puntigrus tetrazona
Striking striped barbs that are notorious fin-nippers. Must be kept in groups of 6+ to redirect aggression within the school. Incompatible with long-finned fish.
Frequently Asked Questions
Can Royal Gramma live with Tiger Barb?
Generally not recommended. Royal Gramma and Tiger Barb 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: Royal Gramma wants 8.1โ8.4 and Tiger Barb wants 6.0โ8.0. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Royal Gramma and Tiger Barb together?
A minimum of 20 gallons is recommended for keeping Royal Gramma and Tiger Barb together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Royal Gramma and Tiger Barb?
72โ79ยฐF โ inside Royal Gramma's 72โ82ยฐF and Tiger Barb's 68โ79ยฐF.
Is a Royal Gramma aggressive toward a Tiger Barb?
Royal Gramma is semi and Tiger Barb is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Royal Gramma and Tiger Barb
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 30 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 55 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 75 gal | Best when keeping larger schools or reducing territorial pressure. |