Can Bristlenose Pleco Live With Swordtail?
Bristlenose Pleco and Swordtail are compatible. Temperature overlap 73–81°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Bristlenose Pleco | Swordtail | Overlap |
|---|---|---|---|
| Temperature | 73–81°F | 72–82°F | 73–81°F ✓ |
| pH Range | 6.5–7.5 | 7–8.4 | 7–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 5" | 5.5" | Similar ✓ |
| Min Tank Size | 20 gal | 20 gal | 20 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | beginner | — |
Tank Requirements for Bristlenose Pleco + Swordtail
To keep Bristlenose Pleco and Swordtail together, you need at minimum a 20 gallon tank. 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
Bristlenose Pleco
Ancistrus spp.
The Bristlenose Pleco is the most popular pleco species for home aquariums, and for good reason — they stay small (4–5 inches vs 12–24 inches for common plecos), are excellent algae eaters, and are hardy and easy to care for. Males develop distinctive bristle-like growths on their nose, which is how they get their name.
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 →