Compatibility Overview
Swordtail and Tiger Barb can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges, and neither poses a major aggression risk to the other. A minimum 75-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Swordtail | Tiger Barb | Verdict |
|---|---|---|---|
| Temperature | 65–80°F | 68–79°F | ✅ 68–79°F |
| pH Range | 7.0–8.3 | 6.0–8.0 | ✅ 7.0–8.0 |
| Temperament | peaceful | semi | ⚠️ Monitor |
| Adult Size | 5 in | 2.75 in | ✅ Similar |
| Min. Group | 3+ | 6+ | See below |
| Min. Tank Size | 75 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Swordtail — Xiphophorus hellerii
Hardy livebearer with a distinctive elongated lower tail fin in males. Peaceful community fish that tolerate a wide temperature range.
Tiger Barb — Puntigrus tetrazona
Striking striped barbs that are notorious fin-nippers. Must be kept in groups of 6+ to redirect aggression within the school. Incompatible with long-finned fish.
Frequently Asked Questions
Can Swordtail live with Tiger Barb?
Yes, in a well-planned setup. Swordtail and Tiger Barb can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges, and neither poses a major aggression risk to the other. A minimum 75-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Swordtail and Tiger Barb together?
A minimum of 75 gallons is recommended for keeping Swordtail and Tiger Barb together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Swordtail and Tiger Barb?
68–79°F
Is a Swordtail aggressive toward a Tiger Barb?
Swordtail is peaceful and Tiger Barb is semi. Minor aggression possible from the semi-aggressive species; provide hiding spots.