Saltwater Aquarist

Glowlight Rasbora

(Trigonostigma hengeli)

Glowlight Rasbora (Trigonostigma hengeli) in a freshwater aquarium

Species Description…

Scientific Name: Trigonostigma hengeli
Common Name: Glowlight Rasbora
Species Group: Rasbora
Tank Type: Community, Blackwater
Care Level:
Temperament: Peaceful
Diet Type: Carnivore
Role in Aquarium: Schooling Fish
Max Fish Length: 2.4 (inches)
Min Aquarium Size: 22 (gallons)
Native Range: Peninsular Malaysia, Singapore, Sumatra and Borneo, in blackwater peat swamp streams.
Min Temperature: 70°F
Max Temperature: 79°F
Min pH: 4
Max pH: 7.5
Min GH: 0 dGH
Max GH: 10 dGH
Min Group Size:
Breeding: Moderate
Lifespan: years

Overview

  • The Glowlight Rasbora (Trigonopoma pauciperforatum), also sold as the redline rasbora, is a slim rasbora with a glowing orange-to-gold stripe.
  • Native to Peninsular Malaysia, Singapore, Sumatra and Borneo.
  • Grows to about 2.4 in (6 cm) standard length.
  • Lives in blackwater peat swamp streams stained brown with tannins.

Feeding

  • A micropredator that eats insects, worms and zooplankton in the wild.
  • Easy to feed. Offer small live and frozen foods along with quality dried foods.

Habitat

  • A tank with a base of 36 × 12 in (90 × 30 cm).
  • Planted tank with a dark substrate, or a blackwater setup with sand, leaf litter and wood.
  • Soft, acidic water: 70–79°F (21–26°C), pH 4.0–7.5, GH 0–10.

Fish Care

  • Water quality matters more than decor.

Compatibility

  • Good with peaceful Southeast Asian fish of similar size, small loaches and some gouramis.
  • Avoid boisterous tankmates.

Aquarium Behavior

  • A peaceful shoaling fish. [UNVERIFIED] Keep at least 8–10.

Breeding

  • An egg scatterer with no parental care.
  • Fry may appear in mature tanks.
  • For more fry, use a separate spawning tank.