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Can Molly and Discus Live Together?

Compatible with caution
  • Shared temperature window: 82-82°F.
  • pH preferences barely overlap (Molly: 7.5-8.5 vs Discus: 5.5-7).

Side-by-side

ParameterMollyDiscus
Adult size4"8"
Min tank20 gal55 gal
Temperature72-82°F82-88°F
pH7.5-8.55.5-7
TemperamentPeacefulPeaceful
DietOmnivoreCarnivore

Recommended shared tank: 55 gallons or larger. Keep at 82-82°F.

FAQ

Can Molly and Discus live together?

Compatible with caution. Shared temperature window: 82-82°F.

What size tank do Molly and Discus need together?

Plan for at least 55 gallons, more if you keep schooling groups of either species.

See full care guides: Molly · Discus