Can Discus and Oscar live together?

Discus and Oscar 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

Discus vs Oscar

Discus

Symphysodon aequifasciatus

Oscar

Astronotus ocellatus

Verdict:Not compatible

Side-by-side specs

Cichlids

Family

Cichlids

6″

Adult size

13″

75gal

Min tank

75gal

82–88°F

Temperature

74–81°F

5.5–7

6–7.5

peaceful

Temperament

aggressive

Schooling

Solitary

mid

Water level

mid

Compatibility notes

criticalDiscus (82–88°F) and Oscar (74–81°F) need different temperatures.
criticalOscar is aggressive and will bully peaceful Discus.

Try both in the builder →Compare different species