Reference illustration: Kleiner's RasboraReference illustration · may contain inaccuracies

Aquarium fish

Kleiner's Rasbora

Trigonostigma heteromorpha

Kleiner's Rasbora (Trigonostigma heteromorpha) is a small, peaceful, schooling freshwater fish from Southeast Asia, reaching up to 5 cm. It features a high pinkish-copper body and a distinctive dark triangular spot on the side. It inhabits forest streams and peat swamps with soft, acidic water; in the aquarium, it prefers subdued lighting, dark substrate, and plant cover, and thrives best in groups of 8–10 individuals.

Minimum aquarium volume60–100 Lallowed 54–120 L
Social modelGroup
Water temperature22–25 °Callowed 21–28 °C
pH5–7allowed 5–7.5
General hardness1–12 °dGH
Primary swimming zoneMid

Overview

TemperamentPeaceful
Social modelGroup
Minimum group size8
Adult size4.5–5 cm
Primary swimming zoneMid
DietCarnivore