
Dwarf rasbora
Separate dark spots on red-orange
Separate dark markings stand out on a red-orange body: an anterior flank spot plus anal-base and tail-base marks.
- Adult length
- Up to 2.5 cm (standard length, without the tail fin)
- Water temperature
- 20–28 °C
- pH
- 4–6.5
- Hardness
- 1–5 dGH
- Natural habitat
- Inhabits blackwater streams and rivers associated with peat swamp forest, shaded by forest canopy and littered with leaves and wood.
Use mature, stable, soft acidic water with gentle flow and shelter. Its small size and timidity limit community choices.
Appearance and identification
In Boraras naevus, red does not extend onto the head and the anterior spot differs more between sexes.
Same-species behaviour
Keep at least 8–10.
Space requirements
A 45 × 30 cm base.
Diet and feeding
Provide tiny prepared foods and small live or frozen foods; aquarium microfauna alone is insufficient.
Compatibility limits
Small size and peaceful behaviour do not guarantee compatibility; consider predation and feeding competition.
Aquarium environment
Dense planting and floating shade provide shelter. Feeding and water stability remain essential.
Sources
www.seriouslyfish.com ↗ 2026-10-22