I've been obsessing over this fish for quite a while. It was in store, but quite expensive. Plus since it was so fragile I decided not to get them.
I found the most useful information on mongabay.com in the rasbora fish species section: http://fish.mongabay.com/rasboras.htm
Dwarf Rasbora, Pygmy Rasbora, Spotted Rasbora [ Pictures ]
SYN : None, although this species mistaken for a juvenile R. kalochroma .
PD : Among the smallest of aquarium species, the Dwarf Rasbora is an elongated fish. Theback is brownish red, while the body is bright brick red. The belly is yellowish-silver and there are variousblack spots on the body.These usually do not number more than five. The dorsal and anal fins are black andthe other fins have red at their bases.
SIZE : To 1" (2.5 cm) max.
SS : Clown Rasbora ( R. kalochroma ) is similar in coloration, althoughmuch larger.The Ocellated Dwarf Rasbora ( R. urophthalma ) at 1.5" (4 cm) is only slightlylarger.
HAB : Along overgrown riverbanks of still to slow-moving flood plain rivers and swamps. SoutheastAsia; Borneo, Malay Peninsula, Singapore , Sumatra.
S : middle
TANK : A tank measuring 16" (41 cm) with a capacity of 5 gallons (19 L) works well. Thetank should be heavily planted including a cover of floating plants to diffuse the lighting. The substrate should be dark gravel.
WATER : pH 5-6.8 (6.2), dH 0-8 dH (3), 75-81°F (24-27°C)
SB : A peaceful schooling fish recommended for community tank having other small species.
SC : Rasboras, Coolie Loaches, Corydoras, Loricarids, Apistogramma , tetras, hatchetfish, Colisa.
FOOD : Tiny live; insect larvae , Drosophila , other small insects, Artemia ;fine grade flakes.
SEX : Females are plumper and less colorful.
B : This species can be bred in even a 3 gallon fish tank. Use thickets of small, fine-leafed plantsand coarse gravel or marbles as a substrate.The water should be peat-filtered with a pH from 5.7-6.2, a water hardnessfrom 0-3 dH, and a water temperaturefrom 81-84°F (27-29°C). Condition the pair separately for oneto two weeks prior to the spawning.Only 40-50 eggs are laid among plants. The parents should be removed beforethey can consume their own eggs.The eggs hatch after 24-36 hours and the fry are free-swimming three to four days later. Startfeeding with Infusoria and liquid foods.The fry are very small and difficult see. Often, in a well-planted, sparsely populatedtank, some fry will survive to maturity.
BP : 6.Spawning comes easily under the right conditions.
R : This species in sensitive to water changes, medications, and water pollutants. Itwas first imported into Europe in 1905.
DC : 4.This somewhat sensitive species is an excellent fish for a small species or community tank.