The most extreme freshwater habitats in Peninsular Malaysia is the peat swamp forest that consist of dark-coloured and highly acidic waters.

Parosphromenus harveyi is known as licorice gourami, small labyrinth fishes located within the north Selangor peat swamp forest from the Tanjong Malim area in neighbouring Perak state at least one population distribution that exhibit a wide variety of morphological and behavioural traits.

Species of the osphronemid genus Parosphromenus (usually <30 mm SL) that stenotypic inhabitant of peat swamp forests and associated black water streams which has a very little light penetrates.

The person honoured in the specific name is thought to be the German born aquarist Will Harvey (1916-2013) who settled in Scotland after World War II and whose obituary Brown wrote.

Brown to Europe 1984 and 1985 [3] Common name: Turkoosigurami in Finland (Finnish language) Other name: Ornate paradisefish[4] and Harvey Licourice Gourami[5] Short description (Physical characteristics) Morphology They have a round-tail-type.

In nuptial plumage, the male is distinguished from most of the other round-tailed licorice gouramis (with the exception of the Bintan complex) by the absence of any red portions in its colour and its striking iridescent blue-green luminescent bands in the unpaired fins.

Normally spawns in small caves or among leaf litter and forms temporary pair bonds with the male solely responsible for egg and brood-care.

P. harveyi belongs to the former, more species, assemblage in which the male assumes a near-vertical position with the head lowermost and fins splayed during nuptial displays.

Subsequent spawning embraces may dislodge eggs from the roof of the cave, and inexperienced adults sometimes simply eat them so a degree of patience may be required until the fish get things right.

They initially swim without direction and the male will collect and return them to the 'nest' but after 3–5 additional days are fully free-swimming and leave the cave at which point parental care ceases.

This species is chiefly a micropredator feeding on tiny aquatic invertebrates, therefore in the aquarium it must be offered a variety of small live foods such as Artemia nauplii, Daphnia, Moina, mosquito larvae, micro worm, etc.

Their maintenance requirement for breeding pair is the tank must be at least 10 inch, with addition of some dried leaves and hidden pipe for their hiding place.

Very high After the type locality has been dried up almost completely, deforested and thus made barely inhabitable for licorice gouramis, the species appears to have adjourned into the formerly extended nature protection area "Selangor Forest".