Glowlight rasbora
Trigonostigma hengeli
FishFreshwater
- Care level
- Easy
- Temperament
- Peaceful
- Recommended tank
- 50 L
- Maximum size
- 3.5 cm
- Temperature
- 23–28 °C
- pH
- 5.5–7.5
- Group size
- ≥ 8
- Diet
- Omnivore
Care at a glance
Hengel's rasbora looks a lot like the familiar harlequin rasbora but stays smaller and slimmer, with a bright orange stripe above the black wedge that glows under subdued light. It is often mistaken for a small or young harlequin and sold under that name.
It is a schooling fish that only relaxes in a group of eight or more, in soft, slightly acidic water with plenty of fine plants and a dark substrate. Combine it with small, calm fish such as pygmy corys, shrimp or ember tetras; next to busy or large fish it stays pale and shy.
Related species
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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.