Why is my Dwarf Gourami spending so much time at the water surface?

Dwarf Gouramis are labyrinth fish, meaning they have a special organ that allows them to breathe atmospheric air. It is perfectly normal for them to visit the surface frequently to gulp air. Alternatively, males may spend time at the surface building a bubble nest.

Can I keep two male Dwarf Gouramis in the same tank?

It is generally not recommended unless the aquarium is very large and heavily planted to break lines of sight. Males are naturally territorial and will often fight, causing severe stress or injury to the weaker fish.

What is Dwarf Gourami Disease?

Dwarf Gourami Iridovirus (DGIV) is a fatal, highly contagious viral disease common in mass-bred specimens. It has no cure and presents with symptoms like loss of appetite, lethargy, darkened colour, and bodily lesions. Strict quarantine of new fish is highly recommended.

Why are my gourami's fins turning stringy underneath its body?

Those are their natural pelvic fins! In gouramis, the pelvic fins have evolved into long, thin threads covered in sensory cells. They use them to feel their environment and tank mates, much like a cat uses its whiskers.

Do I need a lid on my Dwarf Gourami tank?

Yes. A tight-fitting lid is crucial because it keeps the air above the water warm and humid, preventing damage to their delicate labyrinth organ when they surface to breathe. It also prevents them from jumping out.

FreshwaterTropicalIntermediate

Dwarf Gourami

Trichogaster lalius

A visually striking and popular labyrinth fish known for its diagonal stripes and peaceful nature in well-planted community aquariums.

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Ideal Conditions

Temperature: 22 – 27 °C
pH range: 6 – 7.5
Hardness: 4 – 15 dGH
Adult size: 5 – 7 cm
60L for a pair: 60 litres+
Lifespan: 3 – 5 years
Diet: Omnivore
Water flow: Low
Preferred setup: Heavily planted with floating vegetation

About the Dwarf Gourami

The Dwarf Gourami is an undisputed favourite in the aquarium hobby, bringing vibrant colour and engaging behaviour to tropical setups. Renowned for their intricate labyrinth organ, these fish can breathe atmospheric air, an adaptation developed for surviving in oxygen-poor waters. They exhibit strong sexual dimorphism; males flaunt spectacular neon blue and bright orange-red stripes, while females wear a modest, silvery-grey sheen. Despite their compact size, they carry enormous personality and make an excellent centrepiece for smaller community tanks.

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Where Dwarf Gourami comes from

Native range

South Asia

Countries / regions

India, Bangladesh, Pakistan

Habitat

Sluggish, heavily vegetated streams, rivulets, and ponds.

Widely distributed throughout the Ganges and Brahmaputra river systems.

Similar species

Honey Gourami
Trichogaster chuna
Thick-lipped Gourami
Trichogaster labiosa
Pearl Gourami
Trichopodus leerii

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, active, and occupy the middle waters without threatening the gourami's territory.
Great
Bronze Corydoras
Corydoras aeneus
Bottom-dwelling and completely peaceful; they stay out of the gourami's way.
Great
Neon Tetra
Paracheirodon innesi
Small, colourful, and peaceful shoaling fish that thrive in similar planted conditions.
Great
Tiger Barb
Puntigrus tetrazona
Notorious fin-nippers that will harass the gourami and nip their delicate pelvic feelers.
Not recommended
Siamese Fighting Fish (Betta)
Betta splendens
Both are labyrinth fishes with similar body shapes; males will view each other as rivals and fight aggressively.
Not recommended
Fancy Guppy
Poecilia reticulata
Male guppies' bright colours and flowing fins can sometimes trigger territorial aggression from a male Dwarf Gourami.
Compatible with caution

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