Harvey's licorice gourami

Parosphromenus harveyi

Also known as Selangor licorice gourami

FreshwaterFish

Care at a glance

Temperature
72–81°F
22–27°C
pH
4.5–6.0
Adult size
1.2 in
3.1 cm
Minimum tank
5 gal
20 L
Temperament
Peaceful
Tankmates
With caution
Diet
Carnivore
Difficulty
Difficult
Breeding
Cave spawner · Hard
Rarity
Rare
Family
Osphronemidae
Origin
North Selangor peat swamps, Malaysia

Overview

Harvey's licorice gourami is a Malaysian blackwater dwarf for a dim, botanical tank. It is a demanding fish for experienced keepers.

Did you know

Harvey's licorice gourami honors Will Harvey, a German-born aquarist who lived to 2013. An international keeper network now runs coordinated breeding for it, so home aquariums form part of its survival plan.

Caring for the Harvey's licorice gourami

House a single pair of Harvey's licorice gouramis in a dim, botanical tank of at least 5 gal (20 L). Furnish it with driftwood, deep leaf litter, small caves and heavy shade. The fish stay among the caves and leaves.

Hold the pH at 4.5 to 6.0 and the temperature at 72 to 81°F (22 to 27°C). Reverse osmosis water helps reach the softness it needs. Stable, very soft, acidic water keeps it in condition and willing to spawn.

Feed small live and frozen foods such as baby brine shrimp, microworm and daphnia, since it will not compete for flakes. Keep it alone or with no more than a few tiny, gentle companions, and choose any tank mate carefully.

Breeding is hard and follows the usual licorice gourami pattern of cave spawning and paternal care. Displaying males edge their fins in metallic blue-white over black. Keepers treat the species almost as a conservation charge, so keep a pair, breed it and pass the fry on to other hobbyists.

Good to know

Parosphromenus harveyi is a labyrinth fish in the family Osphronemidae, described by Barbara Brown in 1987. Much of its swamp forest has been drained and converted, and the species is considered endangered. It is also known as the Selangor licorice gourami.

In the wild

Harvey's licorice gourami survives in the North Selangor peat swamp forest and a few nearby blackwaters in Peninsular Malaysia. These are among the most acidic freshwater habitats in the region, with dark, mineral-poor, shaded water.

Common questions

What size tank does a Harvey's licorice gourami need?

A Harvey's licorice gourami needs at least 5 gal (20 L). It spends most of its time in the middle.

What temperature and pH does a Harvey's licorice gourami need?

A Harvey's licorice gourami is comfortable at 72–81°F (22–27°C) with a pH of 4.5–6.0.

What does a Harvey's licorice gourami eat?

A Harvey's licorice gourami eats small live and frozen foods, such as baby brine shrimp, microworm and daphnia. It will not compete for flakes.

How big does a Harvey's licorice gourami get?

An adult Harvey's licorice gourami reaches about 1.2 in (3.1 cm).

How does a Harvey's licorice gourami breed?

Harvey's licorice gouramis spawn in caves, and the male cares for the brood. Breeding is hard, and keepers who manage it pass the fry on to other hobbyists.

Related species