Silver Arowana and Zebra Loach Compatibility Overview
Silver Arowana and Zebra Loach are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Silver Arowana is aggressive and Zebra Loach is peaceful. 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 | Silver Arowana | Zebra Loach | Verdict |
|---|---|---|---|
| Temperature | 68โ86ยฐF | 70โ79ยฐF | โ 70โ79ยฐF |
| pH Range | 5.0โ7.5 | 6.0โ7.5 | โ 6.0โ7.5 |
| Temperament | aggressive | peaceful | โ Risk |
| Adult Size | 31.5 in | 3.5 in | โ 9ร difference |
| Min. Group | 1+ | 5+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
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.
โ Full Silver Arowana care guide
Zebra Loach โ Botia striata
The Zebra Loach is a popular community fish known for its striped appearance and peaceful nature. It requires a spacious tank and is best kept in groups of at least three. These loaches are adaptable and can thrive in a variety of freshwater conditions. They are bottom feeders and help to keep the aquarium clean by eating algae and uneaten food.
Frequently Asked Questions
Can Silver Arowana live with Zebra Loach?
Generally not recommended. Silver Arowana and Zebra Loach are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Silver Arowana is aggressive and Zebra Loach is peaceful. 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 Silver Arowana and Zebra Loach together?
A minimum of 100 gallons is recommended for keeping Silver Arowana and Zebra Loach together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Silver Arowana and Zebra Loach?
70โ79ยฐF โ inside Silver Arowana's 68โ86ยฐF and Zebra Loach's 70โ79ยฐF.
Is a Silver Arowana aggressive toward a Zebra Loach?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Silver Arowana and Zebra Loach
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. |