Can Swordtail Live With Hillstream Loach?
Swordtail and Hillstream Loach are compatible. Temperature overlap 72–75°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Swordtail | Hillstream Loach | Overlap |
|---|---|---|---|
| Temperature | 72–82°F | 65–75°F | 72–75°F ✓ |
| pH Range | 7–8.4 | 6.5–7.5 | 7–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 5.5" | 3" | Similar ✓ |
| Min Tank Size | 20 gal | 20 gal | 20 gal minimum together |
| Diet | Omnivore | Herbivore | — |
| Care Level | beginner | intermediate | — |
Tank Requirements for Swordtail + Hillstream Loach
To keep Swordtail and Hillstream Loach together, you need at minimum a 20 gallon tank. Swordtail should be kept in a school of 3+. Hillstream Loach should be kept in a school of 3+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Swordtail
Xiphophorus hellerii
Swordtails are hardy, colorful livebearers named for the distinctive elongated lower tail fin (the 'sword') found on males. They come in many color varieties including red, pineapple, marigold, and tuxedo. Larger than guppies but just as easy to care for, swordtails are excellent community fish that prefer hard, alkaline water.
Full care guide →Hillstream Loach
Sewellia lineolata
Hillstream loaches are fascinating flat-bodied fish that resemble tiny stingrays. They are specialized for life in fast-flowing, oxygen-rich streams and use their modified pelvic and pectoral fins to grip smooth rocks in strong current. Their unique appearance, algae-eating habits, and cool-water preference make them popular with experienced fishkeepers looking for something different.
Full care guide →