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title: "Pearl Gourami: The Complete Care, Tank & Breeding Guide" description: "The definitive pearl gourami (Trichopodus leerii) care guide: tank setup, water parameters, feeding, the lace pattern and orange breast, bubble-nest breeding, and peaceful tank mates." slug: pearl-gourami commonName: Pearl Gourami scientificName: Trichopodus leerii family: Osphronemidae order: Anabantiformes difficulty: Beginner minTankSize: 30 temperature: "77–82°F (25–28°C)" ph: "6.0–7.5" hardness: "3–12 dGH" lifespan: "4–6 years" maxSize: "4.7 inches (12 cm)" origin: "Malaysia, Thailand, Sumatra, Borneo" publishedAt: "2026-06-04"

Pearl Gourami: The Complete Care, Tank & Breeding Guide

The pearl gourami is widely considered the most beautiful and most peaceful of the larger gouramis — an elegant, graceful labyrinth fish draped in a delicate, pearlescent lace pattern, with mature males flushing a fiery orange-red breast. Trichopodus leerii combines genuine beauty with a calm, gentle temperament and real hardiness, making it one of the finest centerpiece fish for a peaceful, planted community tank. Where the dwarf gourami brings shimmering colour in a small package (with health caveats), the pearl gourami brings serene, lacy elegance in a larger, hardier one.

This guide is the complete reference: the pearl gourami's biology and labyrinth breathing, how to set up its tank, what to feed it, its bubble-nest breeding, and which tank mates suit its gentle nature.

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Species Overview

The pearl gourami (Trichopodus leerii, formerly Trichogaster leerii), also called the lace or mosaic gourami, is a labyrinth fish from Southeast Asia reaching about 11–12 cm (4.5–4.7 inches). Its body is covered in a fine, pearlescent "lace" or "mosaic" pattern of light spots over a brownish-silver base, with a dark horizontal line running from snout to tail. Mature males are the showpieces: they develop a vivid orange-to-red breast and throat, elongated, pointed dorsal and anal fins, and trailing thread-like pelvic fins.

The pearl gourami is peaceful — among the most placid of all gouramis — hardy, graceful, and long-lived (4–6 years), making it an outstanding centerpiece for a calm community. Like all labyrinth fish it breathes air at the surface via a labyrinth organ, and like its relatives it has thread-like pelvic fins it uses as sensory feelers. Its elegance, gentle temperament, and robustness (it lacks the dwarf gourami's mass-breeding health issues) make it a perennial favourite for planted community tanks.

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Natural History and Origin

Trichopodus leerii is native to the lowland swamps, slow rivers, and peat-stained blackwater of the Malay Peninsula, Thailand, Sumatra, and Borneo — warm, soft, acidic, vegetation-choked, low-oxygen waters. This origin gives it its labyrinth organ (for breathing air where oxygen is scarce) and its preference for calm, soft, warm, well-planted water with a quiet surface.

In the wild, males build bubble nests among vegetation to spawn, a classic labyrinth-fish behaviour. The peat-stained, soft, acidic blackwater habitat is reflected in the fish's best colour and condition in soft, slightly acidic, gently tannin-stained aquarium water, though it adapts to a reasonable range. Its naturally peaceful, somewhat shy disposition means it values cover and calm tank mates to feel secure and display its full lacy beauty.

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Water Parameters

Pearl gouramis do best in warm, soft, slightly acidic, stable water reflecting their blackwater origins, though they adapt to a moderate range. Keep the tank cycled and stable — confirm with the nitrogen cycle tracker and check values with the water parameters reference. As labyrinth fish they need access to the surface and benefit from a warm, humid air layer above the water (a lid helps protect the labyrinth organ).

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Tank Setup Guide

Tank size

Because they reach 12 cm, pearl gouramis need more room than dwarf gouramis: a minimum of 30 gallons (115 litres), with 40+ gallons better, especially for a group. Despite the size they are gentle, slow-moving fish that value calm water and planting over open swimming space.

Aquascape — planted and calm

Pearl gouramis shine in a densely planted tank with floating plants. Floating plants like duckweed diffuse light, provide security, and give males anchorage for bubble nests, while Java moss, tall background plants, and driftwood create the cover that makes these somewhat shy fish bold. A calm surface is important for their air-breathing and nest-building. A dark substrate and gentle tannins (from botanicals/driftwood) deepen their colours and recreate their blackwater habitat.

Filtration, flow, lid

Use gentle filtration with low flow — pearl gouramis dislike strong current. A lid keeps the surface air warm and humid for the labyrinth organ and prevents jumping. Subdued lighting (helped by floating plants) suits them and showcases the pearlescent lace pattern and the males' orange breast.

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Feeding Guide

Pearl gouramis are omnivores that take a wide variety of foods at the surface and mid-water, and they're useful natural controllers of some pests (they'll eat hydra and small snails).

What to feed

• Quality flake and pellets — a convenient staple.
• Live and frozen daphnia, baby brine shrimp, and bloodworm — relished, excellent for colour and conditioning.
• Some vegetable/spirulina content for balance.

How often

Feed two to three small meals daily. Pearl gouramis are deliberate feeders; ensure they get their share in a community. A varied diet brings out the males' orange breast and the body's iridescent lace. A healthy pearl gourami is full-bodied, gracefully active, and confidently using the open water and surface.

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Behavior and Temperament

Pearl gouramis are renowned for being exceptionally peaceful and graceful — arguably the calmest of the larger gouramis. They glide serenely through the planted tank, explore with their thread-like pelvic feelers, and rise to the surface to breathe, bringing a tranquil elegance to a community. They are far less prone to the male-on-male aggression of dwarf gouramis, though males may display to one another with flared fins and intensified colour, generally without real harm, especially in a spacious, planted tank.

They can be a little shy, particularly when newly added or in sparse, bright tanks, so cover and floating plants help them settle and display. A male will become mildly territorial when building a bubble nest, but even then they are gentle by gourami standards. Their calm, beautiful presence makes them an ideal centerpiece for a peaceful community, and a group (with more females than males) coexists harmoniously in a large enough tank.

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Compatibility

Pearl gouramis are excellent peaceful community fish that mix with a wide range of calm tank mates.

Good tank mates: neon tetra, cardinal tetra, rummynose tetra, harlequin rasbora, congo tetra, corydoras, bristlenose pleco, kuhli loach, and other peaceful community species.

Cautions:

• Fin-nippers (tiger barb, serpae tetra) — damage their long, delicate fins.
• Aggressive or boisterous fish — intimidate the gentle, sometimes-shy gourami.
• Very small shrimp/fry — may be eaten.
• Multiple males need space and planting to display peacefully.

Use the compatibility checker. A pearl gourami (or a small group) with a soft-water tetra shoal and corydoras in a planted tank is a serene, classic community.

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Breeding Guide

Pearl gouramis are bubble-nest builders, and breeding them is a rewarding, achievable project. Sexing is straightforward in mature fish: males have the vivid orange-red breast, longer pointed dorsal/anal fins, and trailing pelvic fins; females are plainer and rounder.

Condition a pair on rich live/frozen foods; soft, warm, slightly acidic water and floating plants encourage spawning. The male builds a large bubble nest among floating plants, then displays his orange breast to entice the female beneath it. They embrace, the female releases eggs that float into the nest, and the male takes over care, tending and defending the nest and eggs. Remove the female after spawning.

The eggs hatch in a day or two and the fry become free-swimming after several more days (remove the male once they're free-swimming). The fry are tiny and need the smallest first foods — infusoria and microworms — before baby brine shrimp, in a calm tank with a warm, humid surface layer for proper labyrinth development. Pearl gouramis are reasonably prolific and make a great introduction to breeding larger labyrinth fish.

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Health and Disease

Pearl gouramis are hardy — notably free of the mass-breeding health issues that plague dwarf gouramis — and disease is uncommon with good care.

Ich can follow temperature swings or stress; treat promptly. Bacterial infections, fin rot, and fungal issues follow poor water, stress, or injury (especially fin damage from nippers). Labyrinth-organ chilling can occur if the surface air is cold, so keep a lid and warm, humid air above the water.

Prevention: a stable, warm, soft-ish, planted, cycled tank, a varied diet, gentle flow, peaceful tank mates (no fin-nippers), a covered warm surface, and quarantine of new arrivals. Given those, the pearl gourami is a robust, long-lived, elegant fish.

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Interesting Facts

• A living lace. Its fine pearlescent mosaic pattern over the body is the most delicately beautiful of any common gourami.
• An orange-breasted suitor. Mature males flush a vivid orange-red throat and breast, intensifying during courtship.
• The gentle giant of gouramis. Among the most peaceful of all gouramis, ideal for a calm community despite its size.
• A pest controller. Pearl gouramis will eat hydra and small pest snails, a useful natural service in a planted tank.
• An air-breather with feelers. Like all labyrinth fish it breathes air at the surface and explores with thread-like sensory pelvic fins.

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Bringing It Together

The pearl gourami is, for many, the finest centerpiece fish a peaceful community can have: graceful, exceptionally calm, hardy, and draped in a delicate pearlescent lace set off by the male's fiery orange breast. Give it a 30-gallon-plus densely-planted tank with floating plants, soft warm slightly-acidic water, a covered warm surface, gentle flow, a varied diet, and peaceful tank mates with no fin-nippers — and it will glide serenely through your tank for years, very possibly building a bubble nest. It offers the elegance of a large gourami without the dwarf gourami's health caveats; for an even smaller, gentler labyrinth fish, see the honey gourami. Plan the planted build with the AI Tank Blueprint generator and the compatibility checker.