Taxonomy & naming
Kottelat described the species in 1982 from a locality 31–62 mi north of Sampit, Kalimantan, Borneo. The correct spelling of the epithet is korthausae, and the spelling korthusae sometimes seen in trade lists is a misspelling. Pectenocypris is in the family Danionidae. No widely used English common name is recorded.
Morphology
A very small, slender, surface-oriented danionid. FishBase gives a maximum of 1.5 in SL for males and unsexed fish.
Habitat
FishBase lists Sumatra and southern Borneo and calls it demersal. The genus is associated with acidic blackwater peat swamp streams of the Sunda region.
Feeding
Diet is not described in the FishBase summary. Small fishes of this kind take micro-crustaceans and other small plankton.
Mating
Mating behaviour is not described.
Breeding
Reproduction is not described, and no captive spawning has been documented.
In the aquarium
FishBase gives no temperature, pH or hardness range. Keep it in soft, acidic, tannin-stained water in a group, with fine foods and a lid, and avoid boisterous tankmates.
Conservation
The IUCN Red List category is Near Threatened. No assessment year is given in the FishBase summary. Loss and drainage of peat swamp forest is the usual pressure on blackwater species in this region.