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Can Betta (male) and Otocinclus Live Together?

Compatible with caution
  • Shared temperature window: 76-79°F.
  • Shared pH window: 6.5-7.5.
  • Bettas are unpredictable; avoid bright/long-finned tankmates and have a backup plan.

Side-by-side

ParameterBetta (male)Otocinclus
Adult size2.5"1.5"
Min tank5 gal10 gal
Temperature76-82°F72-79°F
pH6.5-7.56-7.5
TemperamentAggressivePeaceful
DietCarnivoreHerbivore

Recommended shared tank: 10 gallons or larger. Keep at 76-79°F. Target pH 6.5-7.5.

FAQ

Can Betta (male) and Otocinclus live together?

Compatible with caution. Shared temperature window: 76-79°F.

What size tank do Betta (male) and Otocinclus need together?

Plan for at least 10 gallons, more if you keep schooling groups of either species.

See full care guides: Betta (male) · Otocinclus