Can Betta Fish Live With Julii Corydoras?
Yes, bettas and julii corydoras pair well in 10 gallons or larger because corydoras stay on the bottom and bother no one.
Why
- Julii corydoras grow to 2.5 inches and spend all their time on the substrate, sifting for food.
- Bettas are surface-oriented fish that rarely venture to the bottom, so they occupy completely different zones.
- Both species thrive in temperatures of 76-79F and pH of 6.5-7.5, matching their natural ranges precisely.
- Corydoras have a bony armor and are too large to be prey for most bettas.
- Corydoras are peaceful and have no traits that provoke betta aggression.
What could go wrong
A betta with very long flowing fins may be nipped at by a curious corydoras, though this is rare and usually harmless.
Gear for a shared tank
Sized for the 10 gallon minimum this pairing needs. Affiliate links — we earn a small commission if you buy through them.
AquaClear 20 Power Filter
Rated for up to 10 gallons with enough biological media to handle the waste from both species.
Eheim Jager 100W Thermostat Heater
Holds a steady temperature inside the 76-79°F window both species need.
API Freshwater Master Test Kit
Keep ammonia, nitrite, and nitrate in check. Two-species tanks have more bioload and less margin for error than single-species setups.
Related compatibility questions
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