Can celestial pearl danios live with arowanas?

Verdict

No. Celestial pearl danios and arowanas should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 1 inches celestial pearl danios do.

Celestial pearl danio72–79°F · pH 6.5–7.5

Silver arowana75–86°F · pH 6–7

What to watch

Deal breakerAn adult silver arowana eats fish that fit in its mouth, and at 1 inches celestial pearl danios do.
Deal breakerArowanas are aggressive and will bully peaceful celestial pearl danios.
Watch outArowanas grow to 36 inches and need 250 gallons, far more than a tank set up for celestial pearl danios.

What works

Both are fine at 75–79°F.
pH 6.5–7 suits both.
They use different parts of the tank: celestial pearl danios the mid, arowanas the top.

Water side by side

The green band is the temperature range both can live in.

The green band is the pH both tolerate.

Size to scale

Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

	Celestial pearl danio	Silver arowana
Temperature	72–79 °F	75–86 °F
pH	6.5–7.5	6–7
Adult size	1.0 in	36.0 in
Minimum tank	10 gal	250 gal
Temperament	Peaceful	Aggressive
Swims at	Middle	Top
Group	Groups of 6+	One per tank
Diet	Omnivore	Carnivore

Better tank mates for celestial pearl danios

All celestial pearl danio tank mates

Questions

Can celestial pearl danios live with arowanas?

No. Celestial pearl danios and arowanas should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 1 inches celestial pearl danios do.

What temperature suits both celestial pearl danios and arowanas?

75–79 °F. Celestial pearl danios need 72–79 °F, arowanas need 75–86 °F.

What size tank do celestial pearl danios and arowanas need together?

At least 250 gal, set by the silver arowana. Add space for each extra fish.