Can Discus and Molly live together?

Discus and 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 Molly

Discus

Symphysodon aequifasciatus

Molly

Poecilia sphenops

Verdict:Possible with care

Side-by-side specs

Cichlids

Family

Livebearers

6″

Adult size

4″

75gal

Min tank

20gal

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

Try both in the builder →Compare different species