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TankMinded

Can Betta Fish Live With Dojo Loach?

By Alex WalshLast reviewed Apr 18, 2026
No

No, dojo loaches grow 6-8 inches, need cool water (50-77F), and are active bottom dwellers that will bump and stress bettas.

Why

Minimum shared tank
40 gallons
Shared temperature range
76-77°F

What could go wrong

Dojo loaches will be stressed by betta temperatures while their constant bottom activity disturbs bettas resting near the substrate.

If you keep them in separate tanks

Sized for the 40 gallon minimum this pairing needs. Affiliate links — we earn a small commission if you buy through them.

AquaClear 70 Power Filter

Oversized filtration is what lets you stock two species together without water quality crashing. Rated for a tank slightly larger than the 40 gallon minimum.

Eheim Jager 200W Thermostat Heater

Holds a steady temperature inside the 76-77°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.

Better pairings to consider

Bettas do well with peaceful fish in heated community tanks. Dojo loaches do well with goldfish, white cloud mountain minnows, or coolwater corydoras in unheated tanks.

Related compatibility questions

Keep reading

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Frequently Asked Questions