Can Male Betta and Pygmy Corydoras live together?

Male Betta and Pygmy Corydoras 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

Male Betta vs Pygmy Corydoras

Verdict:Not compatible

Side-by-side specs

Anabantoids

Family

Catfish

2.5″

Adult size

1″

5gal

Min tank

10gal

76–82°F

Temperature

72–79°F

6.5–7.5

semi-aggressive

Temperament

peaceful

Solitary

Schooling

top

Water level

All

Compatibility notes

warnMale Betta and Pygmy Corydoras only narrowly overlap in temperature — keep within 76–79°F.
criticalMale Betta grows large enough (2.5") to eat Pygmy Corydoras (1").

Try both in the builder →Compare different species