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Trigonostigma hengeli

Trigonostigma hengeli
Glowlight Harlequin Rasbora
Trigonostigma hengeli, perhaps better known as the Glowlight Rasbora or Hengel’s Rasbora, is native to Borneo and Sumatra, Indonesia. It has been collected from Sumatra’s Jambi province and from the Tambesi River. It is usually found in gentle streams and densely vegetated tributaries. Trigonostigma hengeli can reach a length of 3 cm in an aquarium. This species has a small, translucent body and a slim, bright orange line extending laterally. There is a black marking below the orange line; the orange and black become more intense when the fish is in good health. This species is difficult to sex, but adult females are generally larger with a rounded belly.