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Chocolate Gourami

Sphaerichthys osphromenoides

AnimaliaChordataActinopterygiiOsphronemidae

📍 Southeast Asia

Ask Finn

A beautiful but demanding gourami with a rich chocolate-brown body and cream vertical bars. A mouthbrooder with fascinating breeding behaviour. Requires very soft, acidic water and pristine conditions. Not for beginners.

Size2.5"
Min Tank20g
School4+
peaceful
Zonemid

Care Guide

Diet

Chocolate Gouramis are micropredators requiring small, high-quality foods fed once daily in small portions. Offer a varied diet of micro pellets, crushed flakes, small frozen foods (brine shrimp, daphnia, bloodworms), and live foods like copepods or small insects when available. They have small mouths and prefer foods that sink slowly or remain suspended in the water column.

Behavior

These are shy, peaceful fish that spend most of their time in mid-water areas among dense vegetation, rarely venturing into open spaces. They are best kept in small groups (minimum 4) where they display more natural schooling behavior and reduced stress. Males may show mild territorial displays but rarely cause harm; they are sensitive to sudden movements and loud noises, making a calm, quiet environment essential.

Breeding

Breeding in captivity is extremely difficult and rarely achieved in home aquariums. They are mouthbrooding fish requiring pristine water conditions (pH 4.0–5.5, very soft water), stable temperatures around 80–82°F, and dense vegetation for spawning sites. Success requires expert-level care and patience; most specimens in the hobby are wild-caught.

Common Diseases

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, rapid breathing, lethargy, rubbing against objects

Treatment

Raise temperature gradually to 82–84°F, perform daily 25% water changes, use aquarium salt cautiously (these fish are salt-sensitive); consider formalin-based treatments at half-strength if needed

Fin Rot

Symptoms

Frayed or disintegrating fins, white or black edges on fins, lethargy

Treatment

Perform immediate 50% water change, improve water quality and stability, treat with antibacterial medication (e.g., methylene blue) at reduced doses; avoid salt treatments

Bacterial Infection (Columnaris)

Symptoms

White or grayish film on body, mouth rot, rapid gill movement, loss of appetite

Treatment

Isolate affected fish, perform daily large water changes, treat with antibiotics (e.g., tetracycline) at reduced doses; maintain pristine water conditions and avoid stress

Parasitic Infection

Symptoms

Excessive scratching, visible parasites, clamped fins, weight loss

Treatment

Perform frequent water changes, treat with anti-parasitic medication (e.g., fenbendazole) at reduced strength; quarantine new fish before adding to main tank

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Quick Facts

diet
Omnivore – frozen bloodworms, brine shrimp, high-quality micro pellets
lifespan
5–8 years
max size
6 cm (2.4 in)
tank size
15 gallons minimum
temperament
Peaceful, shy

Water it likes

ph
4.0–6.0
ammonia
0 ppm
nitrate
<10 ppm
hardness
0–4 dGH
temperature
77–82°F (25–28°C)

Stats

Community tips0
Kept by0 hobbyists