Can Platy and Ranchu Goldfish live together?

Platy and Ranchu Goldfish 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

Platy vs Ranchu Goldfish

Platy

Xiphophorus maculatus

Ranchu Goldfish

Carassius auratus var. ranchu

Verdict:Not compatible

Side-by-side specs

Livebearers

Family

Goldfish

2.5″

Adult size

7″

10gal

Min tank

30gal

70–82°F

Temperature

65–75°F

7–8.2

6.5–8

peaceful

Temperament

peaceful

Schooling

Solitary

mid

Water level

mid

Compatibility notes

criticalRanchu Goldfish produces heavy waste and needs cool water — Platy won't tolerate sharing a tank.

Try both in the builder →Compare different species