Can Oscar and Swordtail live together?

Oscar and Swordtail 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

Oscar vs Swordtail

Verdict:Not compatible

Side-by-side specs

Cichlids

Family

Livebearers

13″

Adult size

5.5″

75gal

Min tank

29gal

74–81°F

Temperature

70–82°F

6–7.5

7–8.4

aggressive

Temperament

peaceful

Solitary

Schooling

mid

Water level

mid

Compatibility notes

criticalOscar is aggressive and will bully peaceful Swordtail.

Try both in the builder →Compare different species