Can Threadfin Rainbowfish and Zebra Danio live together?

Threadfin Rainbowfish and Zebra Danio 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

Threadfin Rainbowfish vs Zebra Danio

Threadfin Rainbowfish

Iriatherina werneri

Zebra Danio

Danio rerio

Verdict:Possible with care

Side-by-side specs

Rainbowfish

Family

Danios

1.5″

Adult size

2″

15gal

Min tank

10gal

75–82°F

Temperature

64–77°F

5.5–7.5

6.5–7.5

peaceful

Temperament

peaceful

Schooling

mid

Water level

top

Compatibility notes

warnThreadfin Rainbowfish and Zebra Danio only narrowly overlap in temperature — keep within 75–77°F.

Try both in the builder →Compare different species