The Glowlight is one of the old favorites of the hobby, and deservedly so. A shoal of these tiny fish kept under appropriate conditions makes a truly impressive sight. There is some doubt regarding the assignation of this species to the genus Hemigrammus, and studies may eventually result in its being assigned to the genus Cheirodon.
- Essequibo basin (Guyana).
- Around 1 1/2in (4cm).
- Peaceful shoaler.
- Wide range of small foods accepted.
- Well planted, with open swimming spaces, and tannin-stained water. Soft, slightly acid water preferred, but some deviation accepted if adjustments are made gradually. Temperature range: 72-82 F (22-28 C).
- Spawning may be achieved using either pairs or a shoal. Eggs are scattered among vegetation in soft, acid water. Hatching takes about 1 day.