The neon dwarf rasbora (Microdevario kubotai) is a small fish native to the Ranong and Phang Nga provinces on the northwestern slope of peninsular Thailand and the Ataran River basin, a tributary within the Salween drainage in southern Myanmar which rises in Kanchanaburi province, western Thailand. It is also likely to occur in other localities in the area between. It inhabits calm to moderately flowing stretches of well oxygenated headwaters and minor tributaries. These habitats tend to be comprised of transparent water with substrates of sand, gravel, rocks, boulders, and patches of leaf litter, with submerged driftwood, roots of riparian vegetation, and aquatic vegetation in places. Mature females tend to be deeper bodied and noticeably larger than the more compact and intensely colored males.
The neon dwarf rasbora should be maintained in an aquarium of 20 to 29 gallons or larger. Smooth rocks, driftwood (ZM2000) and live or artificial plants may be used, as well as a sand substrate (CS7538). These fish look great in a heavily planted tank with a dark substrate and floating plants to diffuse some of the light..
The neon dwarf rasbora prefers a temperature of 68°F to 80°F, a pH of 6.0 to 7.0, and a hardness of 1 to 10°H. Be sure water is clean and well oxygenated.
The neon dwarf rasbora is a generally a peaceful fish suitable for a community aquarium. Good tank mates include small livebearers, many danios, other small rasboras, small tetras and peaceful bottom dwellers such as Corydoras or smaller Loricariids. Neon dwarf rasboras should be kept in schools of at least 8 to 10 individuals to promote schooling behaviors.
The neon dwarf rasbora is easy to feed in the aquarium and will readily accept just about any appropriately sized food item such as flakes (AL165) and frozen brine shrimp (SF6777). For maximum color, growth, and health these fish will look their best when given probiotics (AL169) in addition to a balanced diet.