AquaGuide

Can Molly Live With Corydoras?

possible75/100

Key Takeaways

  • Compatibility verdict: possible with a score of 75/100.
  • Use at least a 25 gallon tank for this combination.
  • Main risk: Water parameter mismatch.
  • Different water parameter preferences
  • Mollies prefer harder, more alkaline water

Compatibility Score Breakdown

Temperature Overlap
80
pH Overlap
60
Temperament
80
Size Risk
90
Swimming Level
95
Diet Conflict
85

Minimum Tank Size

At least 25 gallons for this combination.

Setup Tips

  • Compromise on water parameters
  • Sand substrate for corydoras

Works Best If

  • The tank is at least 25 gallons and fully cycled.
  • Both species have hiding space and are introduced with close observation.
  • Water temperature and pH stay inside the overlap shown in the score breakdown.

Main Risks

  • Water parameter mismatch

Avoid This Pairing If

  • The tank is smaller than the recommended minimum.
  • Either species is already showing stress, hiding, or fin damage.
  • You cannot separate the fish quickly if chasing, nipping, or bullying starts.

Frequently Asked Questions

Can mollies live with corydoras?

Possible, but they prefer different water parameters. Mollies like harder, more alkaline water.

Related Tools

Sources and Review Process

  • Freshwater aquarium husbandry references for water quality, tank size, and stocking guidance.
  • Species profiles and compatibility rules maintained in the TankWise data set.
  • Aquarium health guidance is educational and should not replace an aquatic veterinarian for severe symptoms.

Related Compatibility Guides