Can Serpae Tetra Live With Swordtail?
Serpae Tetra and Swordtail are not compatible due to size mismatch or behavioral conflicts.
Parameter Comparison
| Parameter | Serpae Tetra | Swordtail | Overlap |
|---|---|---|---|
| Temperature | 72–82°F | 72–82°F | 72–82°F ✓ |
| pH Range | 5.5–7.5 | 7–8.4 | 7–7.5 ✓ |
| Temperament | semi-aggressive | peaceful | Monitor ⚠ |
| Max Size | 1.75" | 5.5" | Size mismatch ✗ |
| Min Tank Size | 20 gal | 20 gal | 20 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | beginner | — |
Species Profiles
Serpae Tetra
Hyphessobrycon eques
Serpae tetras are vibrant blood-red schooling fish with a distinctive black comma-shaped marking behind the gill plate. While beautiful, they have a reputation as fin nippers — especially in small groups. Keeping them in schools of 8+ in a spacious tank significantly reduces this behavior. They add bold color to community tanks when kept properly.
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 →