Medaka Youkihi Register Now People In Motion Kelowna, BC. Medaka Youkihi Orange, commonly known as Japanese Rice Fish, are a hardy small fish that has the advantage of preferring colder temperatures without requiring a heater and has a great ability to adapt and thrive in planted aquariums, nano set ups, and mini ponds. The Medaka can also accept a wide range of parameters and spends most of its time swimming at the midlevel and top level of the aquarium, making our available Tropica floating plants an ideal choice to keep in their tanks. This fish is also very peaceful and best not to be kept with larger fish that might chase or bully them. They are also a social species that does better in groups. They display their best colors when kept in cycled and mature planted aquariums. Feeding our Medaka Rice Fish with a high quality dry food is recommended along with freshly hatched artemia to encourage better growth. We also recommend our frozen Stendker Tropical cubes which is a special formula containing a fresh mixture of Artemia, Daphnia, Cyclops, Crayfish, and vitamins that promote optimum results due to supplying the highest nutrition value. Fish Size Guide: The 'Maximum Size' outlined below is the length this fish can reach as a full grown adult. For the actual size please use the select menu above. Discus. ae prefers younger stock for their better ability to adapt to new water parameters and higher tolerance against transport. On rare occasions you may receive larger specimens when small fish are unavailable, however the smallest should be expected unless the size is noted as "Large" or "Adult". Species Information: Scientific Name: Oryzias latipes Maximum Size: 2. 5 cm to 3 cm Temperature: 16 C to 22 C pH Range: 6. 5 to 8. 5 Origin: Japan Stendker Discus: Non Compatible (due to temperature) Dwarf Shrimps: Compatible Notice: Live animals are not manufactured products, sizes may vary and colors will be faded upon delivery from transport. Shipping Policy and Terms & Conditions must be read before placing an order.