Edit Oryzias mekongensis
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Name
Scientific name
Oryzias mekongensis
Described by
Authority Uwa & Magtoon, Year 1986
Family
Adrianichthyidae
Common names
Mekong Ricefish
Photograph credits
All 1 credited
Summary
Oryzias mekongensis, the Mekong ricefish, is endemic to the Mekong River system in northeastern Thailand, Laos and Cambodia. It reaches abo…
Size and aquarium
Maximum size
21mm, standard length
Aquarium size
Minimum length 40 cm, Minimum depth 20 cm
Water
Water conditions
Temperature 23–27°C, pH 6–7.5
Hardness
2–15dGH
Conductivity
Not recorded
Behaviour
Temperament
Peaceful
Social needs
A shoal or group
Community suitability
Community-safe
Where it lives
Countries, regions, rivers and lakes
Cambodia, Laos, Thailand, Mekong, Nam Theun
Writing
Etymology
Oryzias: from the Greek ὄρυζα (oryza), meaning 'rice', in reference to the tendency of some members of the genus to inhabit rice paddy fields. mekongensis: nam…
Distribution
Endemic to the Mekong River system and has been recorded from various tributary drainages in northeastern Thailand, Laos and Cambodia. Type locality is given a…
Habitat
Little information exists, but this species is known only from freshwater habitats and appears to have been collected mainly from clear water swamps, possibly …
Aquarium size
An aquarium with base dimensions of 40 ∗ 20 cm or more is recommended for a group.
Maintenance
Best maintained in a heavily planted set-up, ideally with a dark substrate, patches of dense vegetation, and some open areas. Other décor can consist of twiste…
Water conditions
Not written yet
Diet
A micropredator feeding on small insects, worms, crustaceans and other zooplankton in nature. In the aquarium it will accept dried foods of a suitable size but…
Behaviour and compatibility
Generally peaceful but does not make an ideal addition to many communities due to its small size. Should you wish to maintain it alongside other fishes diminut…
Sexual dimorphism
The genital papilla in males forms a short tube, while in females it is bilobed. Adult males are also slimmer-bodied than females and possess bright, reddish o…
Reproduction
Quite easy to breed and fairly prolific, with females capable of producing batches of eggs every few days or even on a daily basis when in good condition. Spaw…
Notes
O. mekongensis may be sold under the name 'Mekong redfin lampeye killifish' in the aquarium trade. Within the genus it appears to be most closely-related to O.…
References
References
12 on this profile