Taxonomy & naming
This is an undescribed form: no scientific name, authority or type material stands behind it, and its identity and range are not documented in the sources the atlas uses. Wet Spot lists it under two names, Parosphromenus sp. "Jambi" and Parosphromenus cf. gunawani "Jambi". The atlas does not treat it as P. gunawani.
Morphology
Wet Spot gives an average adult size of 1 in (about 1 in). The genus is made up of small gouramis in which males show red, blue and black fin colour and a licorice-striped pattern (genus-level).
Habitat
Wet Spot states that it comes from Jambi province, central Sumatra. Parosphromenus live in blackwater peat swamps and forest streams of Sumatra, Bangka, Borneo and the Malay Peninsula (genus-level).
Feeding
Wet Spot calls it an insectivore, to be offered small live and frozen foods such as daphnia, baby brine shrimp or microworm, and warns against overfeeding.
Mating
In Parosphromenus the male courts in a cave and the pair spawns in a cave roof or under a hollow, with the male guarding the nest (genus-level). Spawning of this form is not documented.
Breeding
No captive-breeding record for this form is held by the atlas.
In the aquarium
Wet Spot lists a minimum of 5 US gallons (about 5 US gal) for a pair, pH 3–6.5, 72–82°F, and highly acidic to low-neutral hardness. It says blackwater is a must for best behaviour and colour, with driftwood and leaf litter for cover, and that sparring is common but injuries are rare if space is ample. Because of conservation efforts it advises keeping the species alone, with the goal of spawning.
Conservation
No IUCN assessment exists for this undescribed form, and its range and numbers are not documented, so its conservation status cannot be stated.