A peaceful to semi-aggressive labyrinth fish native to South Asia. Famous for their brilliant metallic blue and red stripes. While generally suitable for community tanks, males are territorial toward each other and similar-looking fish. They are sensitive to water quality and prone to Iridovirus if stressed. Requires access to the surface to breathe.
At a Glance
Tank Requirements
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Water Parameters
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Keep water parameters stable with the right testing and heating gear.
Temperament & Compatibility
Available Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male (Standard / Color Morphs)
The colorful males found in most stores. Includes all color morphs (Flame, Powder Blue, etc). Males are territorial; keeping one per tank is recommended unless the tank is large (100L+) with broken sightlines.
Differs in 3 traits from base species
Also known as: Flame, Red, Powder Blue, Neon Blue, Cobalt, Rainbow, Standard
Female
Silver/grey and slightly smaller than males. Much more peaceful. Harder to find in the trade but essential for breeding or keeping pairs. Can be kept in groups.
Differs in 4 traits from base species
Also known as: Silver, Wild Type Female
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🟢Ideal Tank MatesDwarf Gourami Care Guide Summary
The Dwarf Gourami, scientifically known as Trichogaster lalius, belongs to the Anabantoids family group. Adults reach a maximum size of approximately 7.5 cm and have a compressed body shape with a moderate growth rate. Classified as semi-aggressive, this species primarily occupies the surface and mid-level zones of the aquarium and produces a low level of biological waste.
To thrive, the Dwarf Gourami requires a freshwater only aquarium with a minimum volume of 50 litres and a tank length of at least 60 cm. Water temperature should be maintained between 22°C and 28°C, with a pH range of 6–7.5 and a general hardness of 4–15 dGH. A low water flow is preferred. An aquarium test kit can help you monitor these values.
The Dwarf Gourami is a rewarding species to keep, provided its core environmental needs are met. This species is available in 2 varieties: Male (Standard / Color Morphs) and Female. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Dwarf Gourami Habitat Setup
When setting up an aquarium for the Dwarf Gourami, a low water flow best suits their natural preferences. Because this species occupies the surface and mid-level zones, the aquarium layout should prioritise adequate surface area with floating cover to make them feel secure near the waterline and open swimming space in the centre of the tank for free movement. Useful additions include dense planting to provide cover, break sightlines, and reduce stress and floating plants to diffuse overhead light and create shaded areas.
Dwarf Gourami Compatibility Notes
Classified as semi-aggressive, the Dwarf Gourami is best housed alone, as they do not tolerate others of their kind in confined spaces. When choosing tankmates, conspecific aggression can be intense, especially in smaller tanks, territorial behaviour may cause issues if hiding spots or floor space are limited, and boisterous or fast-moving tankmates may cause this species undue stress. Selecting tankmates that favour different water layers from the surface and mid-level zones can help reduce competition and territorial overlap.
Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Dwarf Gourami.
15 Gallon Standard
20 Gallon High
20 Gallon Long
29 Gallon Standard
30 Gallon Breeder
36 Gallon Bowfront
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Frequently Asked Questions About Dwarf Gourami
How big does Dwarf Gourami get?
Dwarf Gourami (Trichogaster lalius) typically reaches a maximum adult size of approximately 7.5 cm. They have a compressed body shape and a moderate growth rate.
What tank size does Dwarf Gourami need?
A minimum aquarium volume of 50 litres and a tank length of at least 60 cm are recommended for Dwarf Gourami. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Dwarf Gourami need?
Dwarf Gourami thrives in freshwater only conditions with a temperature range of 22–28°C, a pH between 6 and 7.5, and a general hardness of 4–15 dGH. A low water flow is preferred.
Is Dwarf Gourami peaceful or aggressive?
Dwarf Gourami is classified as semi-aggressive with an aggression score of 5 out of 10. They can work in community setups but may clash with certain tankmates.
Can Dwarf Gourami live with others of its kind?
No. Only one Dwarf Gourami should be kept per tank. Keeping multiples in the same aquarium typically results in aggression and stress.
Does Dwarf Gourami have any special tank requirements?
Yes. Dwarf Gourami benefits from plants - densely covered and plants - floating in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Similar Species
Three Spot Gourami (Blue/Gold/Opaline)
Trichopodus trichopterus
A robust, semi-aggressive labyrinth fish available in many color morphs (Blue, Gold, Opaline). Biologically, they are all the same species. Unlike the peaceful Pearl Gourami, Three Spots are boisterous and can be bullies. They are excellent for 'semi-aggressive' community tanks (e.g., with Tiger Barbs, large Tetras) but may harass shy or long-finned fish.
Pearl Gourami
Trichopodus leerii
Widely considered the most beautiful and peaceful of the large Gouramis. They feature a 'mosaic' of iridescent spots and a distinct black line running through the eye. Unlike their aggressive cousins (the Three-Spot Gourami), Pearls are generally gentle giants, though males can be territorial towards one another. They are thermophilic (love heat) and require floating plants to feel secure.
Honey Gourami
Trichogaster chuna
The smallest and most peaceful member of the Trichogaster genus. Ideally suited for planted nano aquariums. Unlike the aggressive Dwarf Gourami (*T. lalius*), Honey Gouramis are timid and gentle. True Honey Gouramis rarely exceed 5cm. Note: Many bright red fish sold as 'Red Honey' or 'Red Robin' are actually Thick-lipped Gouramis (*T. labiosa*), which grow larger.
Sparkling Gourami
Trichopsis pumila
A stunning nano species known for its iridescent blue/green eyes, body spots, and ability to make audible 'croaking' sounds. Unlike many anabantoids, they are social and best kept in groups. However, they are efficient micropredators that will hunt shrimp fry and pests like hydra. Requires stable water parameters and dense planting.
Kribensis
Pelvicachromis pulcher
A vibrant and highly popular dwarf cichlid native to the slow-moving rivers of West Africa. Unlike Rift Lake African cichlids, they prefer soft, slightly acidic water and densely planted tanks. They are generally peaceful in a community tank but become fiercely territorial and aggressive when breeding, often digging pits in the substrate and claiming the bottom zone. They are cave spawners and require hiding spots like driftwood or coconut shells.
German Blue Ram
Mikrogeophagus ramirezi
A strikingly colorful dwarf cichlid native to the Orinoco River basin. Famous for its vibrant blue spangles and peaceful demeanor compared to larger cichlids. They are strictly thermophilic (require high temperatures of 27-30°C / 81-86°F) and thrive in soft, acidic water. As 'earth-eaters' (Mikrogeophagus), they sift sand for food and form monogamous pairs.