Can rainbow sharks live with chili rasboras?

Verdict

Yes, with care

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

Rainbow shark72–80°F · pH 6.5–7.5

Chili rasbora75–82°F · pH 4–7

What to watch

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

What works

Both are fine at 75–80°F.
pH 6.5–7 suits both.
They use different parts of the tank: rainbow sharks the bottom, chili rasboras 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	Chili rasbora
Temperature	72–80 °F	75–82 °F
pH	6.5–7.5	4–7
Adult size	6.0 in	0.8 in
Minimum tank	55 gal	5 gal
Temperament	Semi-aggressive	Peaceful
Swims at	Bottom	Middle
Group	One per tank	Groups of 8+
Diet	Omnivore	Carnivore

Better tank mates for rainbow sharks

All rainbow shark tank mates

Better tank mates for chili rasboras

All chili rasbora tank mates

Questions

Can rainbow sharks live with chili rasboras?

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

What temperature suits both rainbow sharks and chili rasboras?

75–80 °F. Rainbow sharks need 72–80 °F, chili rasboras need 75–82 °F.

What size tank do rainbow sharks and chili rasboras need together?

At least 55 gal, set by the rainbow shark. Add space for each extra fish.