Can Guppy Live With Swordtail?

✅Compatible

Guppy and Swordtail are compatible. Temperature overlap 72–82°F. Both peaceful.

Conditions: Minimum 20 gallon tank.

Parameter Comparison

Parameter	Guppy	Swordtail	Overlap
Temperature	72–82°F	70–82°F	72–82°F ✓
pH Range	6.8–7.8	7–8	7–7.8 ✓
Temperament	peaceful	peaceful	Both peaceful ✓
Max Size	2.4"	5.5"	Similar ✓
Min Tank Size	11 gal	20 gal	20 gal minimum together
Diet	Omnivore	Omnivore	—
Care Level	beginner	beginner	—

Tank Requirements for Guppy + Swordtail

To keep Guppy and Swordtail together, you need at minimum a 20 gallon tank. Guppy should be kept in a school of 6+. Swordtail should be kept in a school of 4+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.

Species Profiles

Guppy

Poecilia reticulata

beginnerpeaceful11+ gal

The Guppy (Poecilia reticulata) is a beginner freshwater species known for its multi-color (varies by strain) coloration. Extremely popular. Top to Mid.

Full care guide →

Swordtail

Xiphophorus hellerii

beginnerpeaceful20+ gal

The Swordtail (Xiphophorus hellerii) is a beginner freshwater species known for its red-orange, green coloration. Males have elongated sword-like tail. Mid to Top.

Full care guide →

Other Compatible Tank Mates

For Guppy:

neon tetra corydoras catfish cherry shrimp mystery snail nerite snail harlequin rasbora

For Swordtail:

platy molly corydoras catfish bristlenose pleco neon tetra cherry barb