Distributed throughout the lower Mekong River basin in Laos, Vietnam, Cambodia, and Thailand, and in watersheds across central and southern (peninsular) Thailand.
Type locality is ‘Saigon, southern Vietnam’.
Found in all types of still to slow-moving, predominantly lowland habitat, including swamp forest, peat swamps, floodplains, river tributaries, irrigation canals, paddy fields, and roadside ditches. Displays a distinct preference for sluggish to still environments with dense growths of aquatic or riparian vegetation.
Sympatric fish species include Trichopsis vittata, T. schalleri, Trichopodus trichopterus, Betta siamorientalis, Anabas testudineus, Lepidocephalichthys hasselti, Pangio anguillaris, Macrognathus siamensis and Monopterus albus.
Maximum Standard Length
35 – 40 mm.
Aquarium SizeTOP ↑
An aquarium with base measurements of 45 ∗ 30 cm or equivalent is large enough to house a pair or small group.
This species fares best in a well-planted, shady aquarium with plenty of surface cover in the form of tall stem plants, floating varieties, or tropical lilies. Cryptocoryne spp. are also a good choice.
Driftwood can also be used and other plants such as Microsorum or Taxiphyllum spp. may be attached to it. Small clay plant pots, lengths of plastic piping or empty camera film cases can also be included to provide further shelter.
The addition of dried leaf litter offers additional cover and brings with it the growth of microbe colonies as decomposition occurs. These can provide a valuable secondary food source for fry, while tannins and other chemicals released by the decaying leaves are considered beneficial.
As it naturally inhabits sluggish environments strong water movement should be avoided, with an air-powered sponge filter set to turn over gently adequate. Keep the aquarium well-covered and do not fill it to the top since it requires occasional access to the layer of humid air that will form above the water surface, and is an excellent jumper.
Temperature: 22 – 28 °C
pH: 5.0 – 7.5
Hardness: 18 – 215 ppm