Glowlight Rasbora (Trigonostigma hengeli)

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Trigonostigma hengeli.jpg
Glowlight Rasbora

Trigonostigma hengeli

57 Litres (15 US G.)

2.5-4.1cm (1-1.6 ")

sg

Freshwater

pH

5.5 - 8

23 -28 °C (73.4-82.4°F)

2-12 °d

1:1 M:F

Omnivore
Pellet Foods
Flake Foods
Live Foods

4-6 years

Family

Cyprinidae



Additional names

Glowlight Rasbora, Hengel's Rasbora, Porkchop Rasbora

Additional scientific names

Rasbora hengeli


Origin[edit | edit source]

A blackwater species native to Indonesian islands of Sumatra and Borneo.


Sexing[edit | edit source]

Mature females may be larger with a rounded belly.

Breeding[edit | edit source]

Unlike most Cyprinids, which are "egg scatterers", members of the Trigonostigma genus attach their eggs to the underside of broad leaves. Spawning in home aquaria is unlikely as this species requires pristine, acidic, and very soft water for successful breeding. For more information see: Breeding Trigonostigma.


Tank compatibility[edit | edit source]

A shoaling fish that should be kept in groups of at least 8, but thrive in larger groups. Due to their active nature it's best to keep this species in a tank at least 24" (60 cm) in length. Keep with other small, peaceful species such as other Rasboras, Corydoras, peaceful Dwarf Cichlids, and small Gouramis. Avoid anything large enough to swallow these fish, or hyper-active species such as Zebra Danios which may spook them.


Diet[edit | edit source]

Like many other Rasborinae these fish are not picky eaters, and greedily accept any food given. These fish do have small mouths however, so choose appropriately small live, frozen and prepared foods. Crumbled flake, micro pellets, and supplements of cyclops, daphnia, gut-loaded brine shrimp, and small mosquito larvae are good choices.


Feeding regime[edit | edit source]

Feed one to two times daily.


Environment specifics[edit | edit source]

Provide a well planted tank with shaded spots to give this species a sense of security. Dark substrates, and subdued lighting provide the most natural environment. Tolerant of a variety of water parameters as long as water quality is maintained, but requires soft, acidic water to breed.


Behaviour[edit | edit source]

Active, peaceful, but less brazen than larger Rasboras.


Identification[edit | edit source]

Smaller, but with a similar body shape to Trigonostigma heteromorpha these are distinguished by a more translucent body, much slimmer "porkchop", and slender brilliant orange line along the lateral.

Species Note[edit | edit source]

Rasbora hengeli was the original scientific name of this species described by Meinken in 1956, but was reclassified into the genus Trigonostigma by Kottelat & Witte in 1999.[1]

References[edit | edit source]

  1. Åhlander, O. Trigonostigma. Retrieved September 17, 2008 from Bollmoraakvarieklubb.org

External links[edit | edit source]