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Can Molly and Otocinclus Live Together?

Compatible with caution
  • Shared temperature window: 72-79°F.
  • Shared pH window: 7.5-7.5.
  • Otocinclus may fit in Molly's mouth as it grows; watch closely.

Side-by-side

ParameterMollyOtocinclus
Adult size4"1.5"
Min tank20 gal10 gal
Temperature72-82°F72-79°F
pH7.5-8.56-7.5
TemperamentPeacefulPeaceful
DietOmnivoreHerbivore

Recommended shared tank: 20 gallons or larger. Keep at 72-79°F. Target pH 7.5-7.5.

FAQ

Can Molly and Otocinclus live together?

Compatible with caution. Shared temperature window: 72-79°F.

What size tank do Molly and Otocinclus need together?

Plan for at least 20 gallons, more if you keep schooling groups of either species.

See full care guides: Molly · Otocinclus