Schaller’s gourami

Trichopsis schalleri

A solid side stripe with a changeable upper stripe.

The second stripe above the solid midlateral stripe may fade with condition; adults are generally larger than sparkling gouramis.

Adult length: Up to 5 cm (standard length, without the tail fin)
Water temperature: 22–28 °C
pH: 5–7.5
Hardness: 1–12 dGH

Natural habitat: Inhabits lowland swamps, floodplains, tributaries, canals and rice fields, favouring densely vegetated still or slow water.

Keep at 22–28°C, pH 5.0–7.5 and 1–12 dGH, in a quiet setting with gentle flow.

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Appearance and identification

Mature males are usually larger, with extended rays in the dorsal, anal, pelvic and caudal fins. Both sexes can vocalise; sound alone does not identify a male.

Social behaviour and territory

A pair or small group needs quiet companions and several shelters; watch for breeding-related territorial disputes.

Compatibility limits

Nest defence can bring territorial disputes. Provide several shelters and retreat routes.

Space requirements

Allow a 60 × 30 cm base for a pair or small group; more fish need additional space and cover.

Aquarium environment

Use a secure lid and leave an air space above the water: this fish can jump. Keep clear access to the surface for air breathing. Use plants and floating cover for shaded retreats with gentle flow.

Diet and feeding

Offer small suitable frozen or live foods and monitor acceptance of dry foods. Do not rely on leftovers or incidental aquarium organisms for adults.

Sources