Bosemans Rainbowfish and Silver Arowana Compatibility Overview
Bosemans Rainbowfish and Silver Arowana are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Bosemans Rainbowfish | Silver Arowana | Verdict |
|---|---|---|---|
| Temperature | 81โ86ยฐF | 68โ86ยฐF | โ 81โ86ยฐF |
| pH Range | 7.0โ8.0 | 5.0โ7.5 | โ ๏ธ 7.0โ7.5 (narrow) |
| Temperament | peaceful | aggressive | โ Risk |
| Adult Size | 4.3 in | 31.5 in | โ 7ร difference |
| Min. Group | 6+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Bosemans Rainbowfish โ Melanotaenia boesemani
Boeseman's Rainbowfish is a popular freshwater species known for its vibrant colors and peaceful nature. They require a spacious tank and a well-maintained water quality to thrive. These fish are suitable for beginners and can be kept in a community tank with other peaceful species.
โ Full Bosemans Rainbowfish care guide
Silver Arowana โ Osteoglossum bicirrhosum
The Silver Arowana is a majestic and unique fish known for its striking appearance and size. It is a large, predatory fish that requires a spacious tank and specific water conditions. While not a community fish, it can be kept with compatible, larger species. They are sensitive to stress and require careful water quality management.
Frequently Asked Questions
Can Bosemans Rainbowfish live with Silver Arowana?
Generally not recommended. Bosemans Rainbowfish and Silver Arowana are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Bosemans Rainbowfish and Silver Arowana together?
A minimum of 100 gallons is recommended for keeping Bosemans Rainbowfish and Silver Arowana together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Bosemans Rainbowfish and Silver Arowana?
81โ86ยฐF โ inside Bosemans Rainbowfish's 81โ86ยฐF and Silver Arowana's 68โ86ยฐF.
Is a Bosemans Rainbowfish aggressive toward a Silver Arowana?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Bosemans Rainbowfish and Silver Arowana
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 250 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 350 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 450 gal | Best when keeping larger schools or reducing territorial pressure. |