Medaka Ricefish

Oryzias latipes

Also known as: Japanese Ricefish

A hardy, surface-loving coldwater nano fish bred in many soft colors.

Water

Freshwater

Temperature

60–77°F

pH

7–8

Hardness

6–20 dGH

Max size

1.5 in

Min tank

10 gal

Temperament

Peaceful

Social

Schooling (6+)

Swim level

Top

Diet

Omnivore

Care level

Beginner

Lifespan

2-3 years

Breeding

Egg-layer

Suitability

Common

Origin

East Asia (Japan)

An undemanding schooler that thrives in cool, unheated tanks and even outdoor patio tubs. Peaceful and easy to breed, scattering eggs that cling to plants. Available in orange, white, blue, and other gentle color forms.