Giant Danio and Silver Arowana Compatibility Overview
Giant Danio and Silver Arowana are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Giant Danio 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 | Giant Danio | Silver Arowana | Verdict |
|---|---|---|---|
| Temperature | 72โ81ยฐF | 68โ86ยฐF | โ 72โ81ยฐF |
| pH Range | 6.5โ7.5 | 5.0โ7.5 | โ 6.5โ7.5 |
| Temperament | semi | aggressive | โ Risk |
| Adult Size | 4.0 in | 31.5 in | โ 8ร difference |
| Min. Group | 6+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Giant Danio โ Devario aequipinnatus
The Giant Danio is a vibrant and peaceful addition to the freshwater aquarium. Known for its striking red and blue colors, it is a popular choice for beginners and experienced aquarists alike. These fish are relatively easy to care for and can thrive in a well-maintained tank.
โ Full Giant Danio 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 Giant Danio live with Silver Arowana?
Generally not recommended. Giant Danio and Silver Arowana are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Giant Danio 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 Giant Danio and Silver Arowana together?
A minimum of 100 gallons is recommended for keeping Giant Danio and Silver Arowana together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Giant Danio and Silver Arowana?
72โ81ยฐF โ inside Giant Danio's 72โ81ยฐF and Silver Arowana's 68โ86ยฐF.
Is a Giant Danio aggressive toward a Silver Arowana?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Giant Danio 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. |