More info
Datasheet
| Minimum Tank Size | 120 litres / 31.70 US gallons |
| Maximum Size | 12.0cm / 4.72inches |
| Temperature | 20°C / 68.00°F - 27°C / 80.60°F |
| Hardness | 1.01dgH / 18ppm - 12.05dgH / 215ppm |
| pH | 6.0-7.5 |
General Description
The Ceylonese Combtail, scientifically known as Belontia signata, is a fish species belonging to the Perciformes order. This species is distinguished by its reddish body coloration, lack of mosaic-like patterning in the unpaired fins, and small size, reaching up to 12.0cm in length. Endemic to Sri Lanka, it inhabits shallow forested streams with clear water and sandy substrates.
Aquarium Setup
For a Ceylonese Combtail, a minimum tank size of 120 litres is recommended. The ideal tank setup includes soft, sandy substrate, dim lighting, driftwood, scattered roots/branches, and floating vegetation like Ceratopteris thalictroides. Water conditions should be maintained with a hardness of 18-215ppm, a pH range of 6.0-7.5, and a temperature between 20-27°C.
Behaviour
The Ceylonese Combtail is not suitable for average community aquariums but can coexist with medium-sized, peaceful cyprinids in larger setups. Belontia species are not gregarious, with males displaying aggression towards conspecifics, especially non-nuptial females. Introducing new specimens should be done cautiously, as aggression might occur, and single-sex pairs are recommended unless the aquarium is very large.
Feeding and Diet
Primarily carnivorous, the Ceylonese Combtail feeds on invertebrates and mollusks in its natural habitat. In captivity, they accept larger live/frozen foods like earthworms and shellfish, along with dried alternatives such as pellets. Smaller specimens can consume chironomid larvae or Artemia but may be ignored by adults.
Reproduction & Dimorphism
This species reproduces through biparental bubble nesting, showing high fecundity, although specific details are scarce. The nest is reportedly primitive, with both parents engaging in extended brood care. Male Ceylonese Combtails grow larger, have elongated unpaired fins, and develop longer filamentous extensions in the caudal fin compared to females.
Habitat and Distribution
In the wild, Ceylonese Combtails prefer shallow forested streams with slow-moving water, among tree roots or vegetation. They are found in river systems across central and southern Sri Lanka, including the Mahaweli, Kelani, Kalu, and Nilwala drainages. Localities within Sri Lanka show variations in patterning and morphology based on the environment.