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Ceylonese combtail
Belontia signata
Reddish-brown combtail with plain fins.
Common forms are reddish-brown, without B. hasselti’s fin mosaic.
- Adult length
- Up to 12 cm (standard length, without the tail fin)
- Water temperature
- 20–27 °C
- pH
- 6–7.5
- Hardness
- 1–12 dGH
- Natural habitat
- Inhabits clear, shallow forest streams with sand and stones, often among bank roots and vegetation in slower reaches.
Strongly territorial; avoid tiny fish and similarly shaped labyrinth fishes. Suits 20–27°C, pH 6.0–7.5, 1–12 dGH; dim light and shelter.
Appearance and identification
Adult males have longer fin rays; colour varies with fish, condition and locality. Preserve air and surface access.
Social behaviour and territory
Adults do not shoal. Pairs may conflict; brood guarding can intensify harassment.
Compatibility limits
Strongly territorial; avoid tiny fish and similarly shaped labyrinth fishes.
Space requirements
A 120 × 30 cm base even for one pair, with retreats and separation options.
Aquarium environment
Plants, floating cover and wood can create shaded retreats; leave surface access.
Diet and feeding
Combine suitable pellets with larger live/frozen foods; check intake.
Similar and related fish
