Skip to main content
TankMinded

Can Betta Fish Live With Celestial Pearl Danio?

By Alex WalshLast reviewed Apr 18, 2026
No

No, celestial pearl danios have bright colors and patterning that a betta reads as competition, leading to attacks.

Why

Minimum shared tank
10 gallons
Shared temperature range
76-79°F

What could go wrong

A betta attacks the most colorful male first, then works through the school until the danios are dead or missing.

If you keep them in separate tanks

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.

Better pairings to consider

Celestial pearl danios do well with corydoras or small rasboras in a peaceful nano tank. Bettas do well with nerite snails or mystery snails.

Related compatibility questions

Keep reading

Planning a community tank?

Check compatibility for any two freshwater species before you buy. Stop guessing, stop returning fish.

Open the compatibility chart →

Frequently Asked Questions