Can Molly and Rosy Barb live together?

Molly and Rosy Barb are possible with care. 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

Molly vs Rosy Barb

Verdict:Possible with care

Side-by-side specs

Livebearers

Family

Barbs

4″

Adult size

4″

20gal

Min tank

30gal

72–82°F

Temperature

64–75°F

7.5–8.5

6–7.5

peaceful

Temperament

fin-nipper

Schooling

mid

Water level

mid

Compatibility notes

warnMolly and Rosy Barb only narrowly overlap in temperature — keep within 72–75°F.

Try both in the builder →Compare different species