Can rainbow sharks live with celestial pearl danios?

Verdict

Yes, with care

Yes, with care. Rainbow sharks and celestial pearl danios can share a tank, but watch one thing. At 6 inches a rainbow shark can swallow a small celestial pearl danio. Fast, alert fish usually stay out of reach.

Rainbow shark72–80°F · pH 6.5–7.5

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

What to watch

Watch outAt 6 inches a rainbow shark can swallow a small celestial pearl danio. Fast, alert fish usually stay out of reach.

What works

Both are fine at 72–79°F.
pH 6.5–7.5 suits both.
They use different parts of the tank: rainbow sharks the bottom, celestial pearl danios the mid.

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

	Rainbow shark	Celestial pearl danio
Temperature	72–80 °F	72–79 °F
pH	6.5–7.5	6.5–7.5
Adult size	6.0 in	1.0 in
Minimum tank	55 gal	10 gal
Temperament	Semi-aggressive	Peaceful
Swims at	Bottom	Middle
Group	One per tank	Groups of 6+
Diet	Omnivore	Omnivore