Can Discus and Sailfin Molly live together?

Discus and Sailfin Molly 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

Discus vs Sailfin Molly

Discus

Symphysodon aequifasciatus

Sailfin Molly

Poecilia latipinna

Verdict:Possible with care

Side-by-side specs

Cichlids

Family

Livebearers

6″

Adult size

5″

75gal

Min tank

30gal

82–88°F

Temperature

72–82°F

5.5–7

7.5–8.5

peaceful

Temperament

peaceful

Schooling

mid

Water level

mid

Compatibility notes

warnDiscus and Sailfin Molly only narrowly overlap in temperature — keep within 82–82°F.
warnDiscus prefers pH 5.5–7, Sailfin Molly prefers 7.5–8.5 — water chemistry mismatch.

Try both in the builder →Compare different species