Bolivian Ram and Silver Arowana Compatibility Overview
Bolivian Ram and Silver Arowana are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Bolivian Ram is semi and Silver Arowana is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Bolivian Ram | Silver Arowana | Verdict |
|---|---|---|---|
| Temperature | 75โ82ยฐF | 68โ86ยฐF | โ 75โ82ยฐF |
| pH Range | 6.0โ7.5 | 5.0โ7.5 | โ 6.0โ7.5 |
| Temperament | semi | aggressive | โ Risk |
| Adult Size | 3.1 in | 31.5 in | โ 10ร difference |
| Min. Group | 2+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Bolivian Ram โ Mikrogeophagus altispinosus
The Bolivian Ram is a popular freshwater fish known for its vibrant colors and peaceful nature. They are well-suited for community tanks with other peaceful species. These fish are relatively easy to care for, making them a great choice for beginners. They require a well-maintained tank with a moderate water flow and plenty of space for swimming.
โ Full Bolivian Ram 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 Bolivian Ram live with Silver Arowana?
Generally not recommended. Bolivian Ram and Silver Arowana are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Bolivian Ram is semi and Silver Arowana is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Bolivian Ram and Silver Arowana together?
A minimum of 100 gallons is recommended for keeping Bolivian Ram and Silver Arowana together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Bolivian Ram and Silver Arowana?
75โ82ยฐF โ inside Bolivian Ram's 75โ82ยฐF and Silver Arowana's 68โ86ยฐF.
Is a Bolivian Ram aggressive toward a Silver Arowana?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Bolivian Ram 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. |