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Betta rubra
Males are a richer red, with narrower gaps between broad black bars.
Males are a richer red, with narrower gaps between broad black bars. The dark post-eye marking is interrupted, the gill-cover edge remains creamy white, and the triangle below the eye is narrower than in B. dennisyongi.
- Adult length
- Up to 4.2 cm (standard length, without the tail fin)
- Water temperature
- 22–27 °C
- pH
- 5–6.5
- Hardness
- 1–5 dGH
- Natural habitat
- Inhabits peat swamps.
A small mouthbrooding betta; trade stock often includes B. dennisyongi. Red-and-black body patterns alone do not identify it. Soft, acidic water is needed.
Appearance and identification
The dark post-eye marking is interrupted, the gill-cover edge remains creamy white, and the triangle below the eye is narrower than in B. dennisyongi.
Social behaviour and territory
Prefer a single pair in 45×30 cm. Multiple pairs may lead to persistent fighting.
Diet and feeding
Try suitably sized dry food and alternate live or frozen foods such as Daphnia and brine shrimp. Feed small amounts and avoid overfeeding.