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From The Aquarium Wiki

Adrianichthyidae, or Ricefish, belong to the order Beloniformes. They are endemic to India and Japan to the Indo-Australian Archipelago and are found in both fresh and brackish water. There are 27 species presently known in this family.

	Common name	Difficulty	Maximum Size	Minimum Tank Size
Oryzias celebensis	Celebes Medaka	Moderate	1.96850393700791.969 in5 cm	1515 gal56.781 liters 56,781.177 mL
Oryzias latipes	Japanese Ricefish Japanese Rice Fish Medaka Japanese Killfish	Moderate	1.57480314960631.575 in4 cm	1515 gal56.781 liters 56,781.177 mL