Swordtail and Zebra Danio Compatibility Overview
Swordtail and Zebra Danio can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Swordtail | Zebra Danio | Verdict |
|---|---|---|---|
| Temperature | 65โ80ยฐF | 64โ82ยฐF | โ 65โ80ยฐF |
| pH Range | 7.0โ8.3 | 6.5โ8.0 | โ 7.0โ8.0 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 5 in | 2 in | โ ๏ธ 2.5ร difference |
| Min. Group | 3+ | 5+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Swordtail โ Xiphophorus hellerii
Hardy livebearer with a distinctive elongated lower tail fin in males. Peaceful community fish that tolerate a wide temperature range.
Zebra Danio โ Danio rerio
Extremely hardy, fast-moving schooling fish tolerant of a wide temperature range. Active top-to-mid swimmers compatible with most community fish.
Frequently Asked Questions
Can Swordtail live with Zebra Danio?
Yes, in a well-planned setup. Swordtail and Zebra Danio can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Swordtail and Zebra Danio together?
A minimum of 55 gallons is recommended for keeping Swordtail and Zebra Danio together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Swordtail and Zebra Danio?
65โ80ยฐF โ inside Swordtail's 65โ80ยฐF and Zebra Danio's 64โ82ยฐF.
Is a Swordtail aggressive toward a Zebra Danio?
Swordtail is peaceful and Zebra Danio is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Swordtail and Zebra Danio
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 55 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 75 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 125 gal | Best when keeping larger schools or reducing territorial pressure. |