Rainbow shark

Not a shark but a territorial bottom-dwelling carp with red fins. It claims a cave and chases anything that comes near it.

Rainbow shark, side view

Care at a glance

Minimum tank55 gallons (208 L)
Temperature72–79°F (22–26°C)
pH6.5–7.5
How manyRainbow sharks fight their own kind. Keep one per tank.
Adult size6 in (15.2 cm)
Where it livesThe lower half
TypeFish

Good tank mates

Possible with care

Do not mix with

Open any pairing to see the reason.

Tank sizes that fit