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Can Molly and Common Goldfish Live Together?

Compatible
  • Shared temperature window: 72-74°F.
  • Shared pH window: 7.5-8.4.

Side-by-side

ParameterMollyCommon Goldfish
Adult size4"10"
Min tank20 gal40 gal
Temperature72-82°F60-74°F
pH7.5-8.57-8.4
TemperamentPeacefulPeaceful
DietOmnivoreOmnivore

Recommended shared tank: 40 gallons or larger. Keep at 72-74°F. Target pH 7.5-8.4.

FAQ

Can Molly and Common Goldfish live together?

Compatible. Shared temperature window: 72-74°F.

What size tank do Molly and Common Goldfish need together?

Plan for at least 40 gallons, more if you keep schooling groups of either species.

See full care guides: Molly · Common Goldfish