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Dwarf Gourami

Trichogaster lalius

Brilliant colors, big personality quirks, and a health reputation worth knowing before you buy.

Dwarf Gourami
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CC BY-SA 3.0

About

The dwarf gourami (Trichogaster lalius) is one of the most recognizable freshwater fish in the hobby, and the natural male coloration, vivid diagonal bands of red-orange and blue-green, genuinely holds up against any of the line-bred color forms that have flooded the trade in recent years. Wild fish come from slow, heavily vegetated streams, rivulets, and lakes across Pakistan, India, and Bangladesh, where they navigate warm, often oxygen-poor water using a specialized accessory organ called the labyrinth organ, which lets them breathe air directly from the surface. Block that surface access and they'll suffocate regardless of dissolved oxygen levels. In the aquarium they're generally peaceful, but the temperament story has some nuance. Males can be aggressive toward each other and toward similarly colorful species, so keeping two males together in a modest tank is a setup for conflict. A male-female pair is the more sensible approach, though males can occasionally be rough on females. Calm, smaller companions like rasboras, Corydoras, and non-flamboyant tetras work well. There's also a serious health concern worth knowing upfront: dwarf gourami iridovirus has become widespread in commercially farmed stock, and infected fish show no cure. Sourcing from a reputable local breeder rather than chain suppliers is genuinely worth the extra effort with this species.

Frequently asked questions

How big does the Dwarf Gourami get?
The Dwarf Gourami reaches about 2–3.5" as an adult.
What size tank does the Dwarf Gourami need?
A minimum of 15 gallons is recommended for the Dwarf Gourami.
What water parameters does the Dwarf Gourami need?
The Dwarf Gourami does best with a temperature of 72–82Β°F, a pH of 6–8, hardness around 2–19 dGH.
Is the Dwarf Gourami aggressive?
The Dwarf Gourami is generally peaceful and suits a community tank with similarly calm tankmates.
What does the Dwarf Gourami eat?
The Dwarf Gourami is an omnivore. It does well on a varied diet of quality flake or pellet plus occasional frozen or live foods.
How long does the Dwarf Gourami live?
With good care, the Dwarf Gourami typically lives 4-5 years.