Dwarf medaka (Oryzias minutillus)

Scientific name: Oryzias minutillus Smith, 1945

Dwarf medaka (Oryzias minutillus)

The Dwarf medaka (Oryzias minutillus) is a freshwater fish of the family Adrianichthyidae. In the aquarium it needs water at 22–25°C (72–77°F). Native range: Asia, Chao Phraya basin in Thailand and Malay Peninsula. China, Myanmar, Laos, Cambodia, Viet Nam.

Dwarf medaka care at a glance

Temperature
22–25°C (72–77°F)

Biology

Dorsal soft rays (total): 5-7; Anal soft rays: 17 - 21; Vertebrae: 24 - 28. Principal caudal fin rays 4/5; no orange margins on caudal fin.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Oryzias minutillus
Family
Adrianichthyidae (Ricefishes)
Order
Beloniformes (Needle fishes)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
2.0
Environment
Freshwater;; pH range: 7.5 - 8.5 benthopelagic; non-migratory
Climate
Tropical
Distribution
Asia: Chao Phraya basin in Thailand and Malay Peninsula. China, Myanmar, Laos, Cambodia, Viet Nam.
Conservation status (IUCN)
Least Concern (LC)
Threat to humans
Harmless
Resilience
Low, minimum population doubling time 4.5 - 14 years (Assuming fec

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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