Silver Arowana and Zebra Pleco Compatibility Overview
Silver Arowana and Zebra Pleco are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Silver Arowana is aggressive and Zebra Pleco is semi. 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 Pleco | Verdict |
|---|---|---|---|
| Temperature | 68โ86ยฐF | 79โ86ยฐF | โ 79โ86ยฐF |
| pH Range | 5.0โ7.5 | 6.0โ7.5 | โ 6.0โ7.5 |
| Temperament | aggressive | semi | โ Risk |
| Adult Size | 31.5 in | 3.1 in | โ 10ร difference |
| Min. Group | 1+ | 3+ | 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 Pleco โ Hypancistrus zebra
The Zebra Pleco is a popular freshwater species known for its distinctive black and white striped appearance. It is a peaceful community fish, suitable for tanks with other non-aggressive species. These plecos are moderate swimmers and prefer caves and crevices for resting. With proper care, they can live for up to 10 years in an aquarium.
Frequently Asked Questions
Can Silver Arowana live with Zebra Pleco?
Generally not recommended. Silver Arowana and Zebra Pleco are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Silver Arowana is aggressive and Zebra Pleco is semi. 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 Pleco together?
A minimum of 100 gallons is recommended for keeping Silver Arowana and Zebra Pleco together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Silver Arowana and Zebra Pleco?
79โ86ยฐF โ inside Silver Arowana's 68โ86ยฐF and Zebra Pleco's 79โ86ยฐF.
Is a Silver Arowana aggressive toward a Zebra Pleco?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Silver Arowana and Zebra Pleco
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. |