Can Male Betta and Black Skirt Tetra live together?

Male Betta and Black Skirt Tetra 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 Black Skirt Tetra

Male Betta

Betta splendens

Black Skirt Tetra

Gymnocorymbus ternetzi

Verdict:Not compatible

Side-by-side specs

Anabantoids

Family

Tetras

2.5″

Adult size

2.5″

5gal

Min tank

20gal

76–82°F

Temperature

70–79°F

6.5–7.5

6–7.5

semi-aggressive

Temperament

fin-nipper

Solitary

Schooling

top

Water level

mid

Compatibility notes

warnMale Betta and Black Skirt Tetra only narrowly overlap in temperature — keep within 76–79°F.
criticalBlack Skirt Tetra is a fin-nipper — it will harass Male Betta's long fins.

Try both in the builder →Compare different species