Feedbook/Fish

Dorsal-view medaka

Oryzias latipes

Also called Medaka, Japanese rice fish

Dorsal-view medaka side shot: slender translucent silver-olive body

Essential gear

  • Shallow tank or tub
  • Gentle filtration or air pump
  • Hand net
  • Shade cloth (outdoors)
  • Micro pellet food

Lifespan

2–3years

Water temperature

15–28°C

pH

6.5–8.0

Water column

Upper level

Often swims and feeds near the surface

Keep in groups

6+ fish

Even in shallow pans they look best in a group

Diet

Omnivore

Micro pellets, crumbled flakes, brine shrimp nauplii

Suggested habitat

Shallow open water shows top-view varieties best. Indoors use a low tank; outdoors shade tubs and change water to keep mosquito larvae and algae blooms in check.

Plates are husbandry references—not build plans or generator parameters. Check your own water, vessel, and stocking before you act.