Can Harlequin Rasbora Live With Swordtail?
Harlequin Rasbora and Swordtail are compatible. Temperature overlap 73–82°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Harlequin Rasbora | Swordtail | Overlap |
|---|---|---|---|
| Temperature | 73–82°F | 72–82°F | 73–82°F ✓ |
| pH Range | 6–7.5 | 7–8.4 | 7–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 2" | 5.5" | Similar ✓ |
| Min Tank Size | 10 gal | 20 gal | 20 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | beginner | — |
Tank Requirements for Harlequin Rasbora + Swordtail
To keep Harlequin Rasbora and Swordtail together, you need at minimum a 20 gallon tank. Harlequin Rasbora should be kept in a school of 6+. Swordtail should be kept in a school of 3+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Harlequin Rasbora
Trigonostigma heteromorpha
Harlequin rasboras are elegant, copper-colored schooling fish with a distinctive black triangular patch on their body. They are one of the most peaceful and hardy community fish available, making them ideal for beginners. In schools of 8+, they display beautiful coordinated swimming behavior.
Full care guide →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 →