Trigonostigma is a genus of small cyprinid fish found in Southeast Asia. These social, colorful freshwater fish are often kept in aquariums.

Trigonostigma heteromorpha It is easily recognisable thanks to the black triangular patch that starts below its dorsal fin and extends to its tail fin. Its silver scales also give off a reddish to copper sheen. The shimmering colours of its relatively large scales earned it the name “harlequin rasbora”.

The harlequin rasbora is sociable, an active swimmer and one of the most popular aquarium fishes. It originally comes from Malaysia, Indonesia, Sumatra and Thailand, where it can be found in large shoals in black-water swamps and streams.

These fish will eat almost any form of dry food. You can make them particularly happy by regularly feeding them live food. They particularly like black bloodworms.

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