Can Male Betta and Upside-Down Catfish live together?

Male Betta and Upside-Down Catfish 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

Male Betta vs Upside-Down Catfish

Male Betta

Betta splendens

Upside-Down Catfish

Synodontis nigriventris

Verdict:Possible with care

Side-by-side specs

Anabantoids

Family

Catfish

2.5″

Adult size

4″

5gal

Min tank

30gal

76–82°F

Temperature

72–79°F

6.5–7.5

6–7.5

semi-aggressive

Temperament

peaceful

Solitary

Schooling

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Water level

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Compatibility notes

warnMale Betta and Upside-Down Catfish only narrowly overlap in temperature — keep within 76–79°F.

Try both in the builder →Compare different species