🐠 Fish Species Base

Pearl Gourami

Also known as: Trichopodus leerii

The Pearl Gourami is a visually striking labyrinth fish known for its iridescent, pearl-like spots covering a silvery-blue body and long, flowing ventral fins. The Pearl Gourami originates from Southeast Asia, specifically Thailand, Malaysia, and Indonesia, inhabiting slow-moving, vegetated waters such as swamps, ponds, and flooded forests., reaches 12 cm in captivity, typically lives 5, and is kept at 24C (75F). Individual fish vary, so treat this as a general guide rather than a guarantee.

Key facts

  • Lifespan: 5.
  • Adult size: 12 cm (4.7 in).
  • Temperament: Peaceful and shy, best kept in pairs or small groups; males may show mild territorial behavior during breeding but rarely aggressive toward other species.
  • Minimum tank: 75 L (20 gal).
  • Water temperature: 24C (75F).
  • pH range: pH 6.0-7.5.

Species at a glance

Origin
Southeast Asia, specifically Thailand, Malaysia, and Indonesia, inhabiting slow-moving, vegetated waters such as swamps, ponds, and flooded forests.
Adult size
12 cm (4.7 in)
Life span
5
Temperament
Peaceful and shy, best kept in pairs or small groups; males may show mild territorial behavior during breeding but rarely aggressive toward other species.
Tank size
75 L (20 gal)
Water temp
24C (75F)
pH range
pH 6.0-7.5
Diet
Omnivorous; accepts high-quality flakes, pellets, frozen or live foods like brine shrimp, daphnia, and bloodworms, supplemented with blanched vegetables such as zucchini or spinach.
Other names
Trichopodus leerii

About the Pearl Gourami

The Pearl Gourami is a visually striking labyrinth fish known for its iridescent, pearl-like spots covering a silvery-blue body and long, flowing ventral fins. Males develop elongated dorsal fins and more intense coloration during breeding, while females are rounder and less vivid. They possess a labyrinth organ allowing them to gulp air from the surface, enabling survival in low-oxygen environments. Naturally found in densely vegetated, tannin-stained waters, they thrive in well-planted aquariums with subdued lighting and gentle flow.

Lifespan and health

With optimal care, Pearl Gouramis typically live 4–6 years in captivity, though exceptional specimens may reach 8 years; longevity is strongly influenced by water quality, diet stability, and low stress levels, as chronic poor conditions suppress immune function and shorten lifespan. Common health issues include fin rot (often from poor water quality or nipping by tankmates), ich (white spot disease) triggered by temperature fluctuations, and bacterial infections from overcrowding or inadequate quarantine; prevent these by maintaining stable parameters, avoiding aggressive tankmates, and quarantining new fish for 2–4 weeks before introduction.

Overview

The Pearl Gourami is a visually striking labyrinth fish known for its iridescent, pearl-like spots covering a silvery-blue body and long, flowing ventral fins. Males develop elongated dorsal fins and more intense coloration during breeding, while females are rounder and less vivid. They possess a labyrinth organ allowing them to gulp air from the surface, enabling survival in low-oxygen environments. Naturally found in densely vegetated, tannin-stained waters, they thrive in well-planted aquariums with subdued lighting and gentle flow.

Care and tank setup

Tank setup should include dense planting with species like Java fern, Anubias, and floating plants such as Salvinia or duckweed to provide cover and mimic natural habitat; use a dark substrate and driftwood to enhance security and reduce stress. Maintain water temperature between 24–28Β°C (75–82Β°F) and pH 6.0–7.5, with soft to moderately hard water (5–15 dGH); perform 25% weekly water changes and use a gentle filter to avoid strong currents that stress these slow-moving fish. Feed a varied diet 2–3 times daily, offering only what they can consume in 2–3 minutes; include live or frozen foods 2–3 times weekly to encourage natural foraging and vibrant coloration.

Adding a Pearl Gourami? Research the species’ adult size and temperament carefully, quarantine new fish before introducing them to your tank, and buy from reputable aquarium stores or breeders.

Sources

Related breeds

Breed information on this page is based on the Wikipedia article on the Pearl Gourami, supplemented with additional research. Reviewed for accuracy.