Can Fancy Guppy and Rosy Barb live together?

Fancy Guppy and Rosy Barb are not compatible. The comparison on this page runs the same compatibility engine as the tank builder, checking temperature and pH overlap, predation by size, temperament, and known hard-pair conflicts.

Species Comparison

Fancy Guppy vs Rosy Barb

Verdict:Not compatible

Side-by-side specs

Livebearers

Family

Barbs

2″

Adult size

4″

10gal

Min tank

30gal

72–82°F

Temperature

64–75°F

6.8–7.8

6–7.5

peaceful

Temperament

fin-nipper

Schooling

top

Water level

mid

Compatibility notes

warnFancy Guppy and Rosy Barb only narrowly overlap in temperature — keep within 72–75°F.
criticalRosy Barb is a fin-nipper — it will harass Fancy Guppy's long fins.

Try both in the builder →Compare different species