Can Harlequin Rasbora and Red Zebra live together?

Harlequin Rasbora and Red Zebra 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

Harlequin Rasbora vs Red Zebra

Harlequin Rasbora

Trigonostigma heteromorpha

Red Zebra

Maylandia estherae

Verdict:Not compatible

Side-by-side specs

Rasboras

Family

Cichlids

2″

Adult size

5″

15gal

Min tank

75gal

72–81°F

Temperature

75–82°F

6–7.5

7.8–8.6

peaceful

Temperament

aggressive

Schooling

Solitary

mid

Water level

mid

Compatibility notes

warnHarlequin Rasbora prefers pH 6–7.5, Red Zebra prefers 7.8–8.6 — water chemistry mismatch.
criticalRed Zebra is aggressive and will bully peaceful Harlequin Rasbora.

Try both in the builder →Compare different species