Can Male Betta and Rosy Barb live together?

Male Betta 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

Male Betta vs Rosy Barb

Verdict:Not compatible

Side-by-side specs

Anabantoids

Family

Barbs

2.5″

Adult size

4″

5gal

Min tank

30gal

76–82°F

Temperature

64–75°F

6.5–7.5

6–7.5

semi-aggressive

Temperament

fin-nipper

Solitary

Schooling

top

Water level

mid

Compatibility notes

criticalMale Betta (76–82°F) and Rosy Barb (64–75°F) need different temperatures.
criticalRosy Barb is a fin-nipper — it will harass Male Betta's long fins.

Try both in the builder →Compare different species