Swordtail and Weather Loach Compatibility Overview
Swordtail and Weather Loach 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 100-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Swordtail | Weather Loach | Verdict |
|---|---|---|---|
| Temperature | 65โ80ยฐF | 50โ77ยฐF | โ 65โ77ยฐF |
| pH Range | 7.0โ8.3 | 6.0โ8.0 | โ 7.0โ8.0 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 5 in | 11.0 in | โ ๏ธ 2.2ร difference |
| Min. Group | 3+ | 3+ | See below |
| Min. Tank Size | 100 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.
Weather Loach โ Misgurnus anguillicaudatus
The Weather Loach, also known as the Weather Fish, is a popular addition to freshwater aquariums due to its peaceful nature and intriguing behavior. It has a slender, eel-like body with a translucent appearance and dark spots. These loaches are active and enjoy exploring their tank, making them a moderate activity level fish.
Frequently Asked Questions
Can Swordtail live with Weather Loach?
Yes, in a well-planned setup. Swordtail and Weather Loach 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 100-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Swordtail and Weather Loach together?
A minimum of 100 gallons is recommended for keeping Swordtail and Weather Loach together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Swordtail and Weather Loach?
65โ77ยฐF โ inside Swordtail's 65โ80ยฐF and Weather Loach's 50โ77ยฐF.
Is a Swordtail aggressive toward a Weather Loach?
Swordtail is peaceful and Weather Loach is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Swordtail and Weather Loach
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 100 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 150 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 220 gal | Best when keeping larger schools or reducing territorial pressure. |