Adrianichthyidaefreshwater fishbeginner

Red Medaka

Oryzias latipes

Also known as: Red Medaka, Hi Medaka

Origin: Captive-bred (Japan)

R

Water Parameters

Temperature1628 °C
15 °C35 °C
pH6.58
49
GH (Hardness)520 °dGH
0 °dGH30 °dGH
KH (Alkalinity)18 °dKH
0 °dKH20 °dKH

Quick Stats

Max Size
4 cm
Min Tank
20 L
Lifespan
2-4
Swimming Level
upper
Schooling
Yes (6–15+)
Diet
omnivore
Temperament
peaceful surface schooler

About

Oryzias latipes 'Red' is a selectively bred strain of the Japanese Medaka developed over centuries of Japanese aquaculture, displaying a warm uniform red-to-orange body colouration with translucent fins. Like all medaka, it is remarkably hardy and tolerates a wide range of temperatures, including cool conditions — making it suitable for unheated indoor setups and outdoor ponds in temperate climates. It breeds freely and raises fry with relative ease.

Care Guide

Water: 16–28 °C, pH 6.5–8.0, adaptable (GH 5–20). Tank: 20 L minimum; surface plants appreciated; can be kept in outdoor ponds. Feeding: Omnivore — medaka or tropical flake, micro pellets, live/frozen Daphnia. Behaviour: Peaceful surface schooler; keep 6+ for natural group behaviour. Compatibility: Excellent with other medaka, small peaceful community fish, and nano shrimp.

Buy Red Medaka from FinsHQ shops

Shops currently listing this species with stock available

No shops are currently listing Red Medaka. List your shop on FinsHQ.
Built for aquarium retailers

Sell Red Medaka in your shop?

Join aquarium shops already using FinsHQ. Get a beautiful webshop, mobile app, and inventory management — built for aquatic retailers.

Start your free store