Why does my Pearl Gourami keep going to the surface?

Pearl Gouramis possess a labyrinth organ, which functions similarly to a lung and allows them to breathe atmospheric air. Gulping air at the surface is completely normal and necessary for their survival.

What are the long, stringy fins on the bottom of my gourami?

These are modified pelvic fins that act as tactile and chemical sensors. The fish uses them to navigate, feel objects, and find food, much like a cat's whiskers.

How can I tell the difference between a male and a female Pearl Gourami?

Adult males develop a bright orange or red chest, particularly when breeding, and have longer, more pointed dorsal and anal fins. Females remain more uniformly silver-brown and have shorter, rounded dorsal fins.

Can I keep more than one male Pearl Gourami together?

Yes, provided the aquarium is large enough (at least 120 litres) and heavily planted with plenty of sight-breaks. However, keeping a harem of one male with two or three females is generally more peaceful.

Are Pearl Gouramis fin-nippers?

No, they are very peaceful. In fact, they are more often the victims of fin-nipping from fish like Tiger Barbs, who may target their delicate sensory fins.

AI-generated illustration for OneShoal

FreshwaterTropicalBeginner

Pearl Gourami

Trichopodus leerii

The Pearl Gourami is a remarkably beautiful and peaceful labyrinth fish, celebrated for its intricate mosaic-like spots and graceful swimming behaviour.

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Ideal Conditions

Temperature: 24 – 30 °C
pH range: 5.5 – 7.5
Hardness: 2 – 15 dGH
Adult size: 10 – 12 cm
120L (90cm tank minimum): 120 litres+
Lifespan: 4 – 6 years
Diet: Omnivore
Water flow: Low
Preferred setup: Heavily planted with floating plants to provide cover and nesting sites. Needs surface access.

About the Pearl Gourami

Instantly recognisable by the mosaic of pearlescent spots covering its body and its long, sensory pelvic fins, the Pearl Gourami is one of the most attractive and popular anabantoids in the aquarium hobby. Unlike some of its more boisterous relatives, it possesses a gentle disposition that makes it an outstanding centrepiece for a tranquil community tank. As a labyrinth fish, it is equipped with a specialised organ that allows it to breathe atmospheric air, an evolutionary trait adapted for oxygen-deprived swamp habitats.

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Where Pearl Gourami comes from

Native range

Southeast Asia, Malay Peninsula, Sumatra, Borneo

Countries / regions

Malaysia, Indonesia, Thailand

Habitat

Lowland swamps, heavily vegetated sluggish streams, and acidic blackwater environments.

Populations have severely declined in the wild due to habitat destruction and pollution, but it is extensively captive-bred for the aquarium trade.

Similar species

Three Spot Gourami
Trichopodus trichopterus
Moonlight Gourami
Trichopodus microlepis
Dwarf Gourami
Trichogaster lalius

We’re adding more full species guides as the catalogue grows.

Compatible tank mates

Reviewed guidance based on this species' recorded traits.

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Harlequin Rasbora
Trigonostigma heteromorpha
Peaceful, occupies the middle water column, and originates from similar Southeast Asian habitats.
Great
Kuhli Loach
Pangio kuhlii
Gentle bottom dwellers that will completely ignore the gourami and thrive in similar planted setups.
Great
Tiger Barb
Puntigrus tetrazona
Notorious fin-nippers that may harass the gourami and nip its delicate, thread-like pelvic fins.
Compatible with caution
Male Betta
Betta splendens
Closely related anabantoids; the Betta may view the gourami as a territorial threat, leading to conflict.
Compatible with caution
Red Tail Black Shark
Epalzeorhynchos bicolor
Too aggressive and territorial for the timid Pearl Gourami, causing severe stress.
Not recommended

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