Kelvin K P Lim and Peter K L Ng
About the family in general
Primary freshwater fish; oviparous; carnivorous (primarily insectivorous); gregarious. Slender to slightly rhomboid-shaped cyprinids which lack barbels.
The rasboras are among the most popular of all aquarium fishes, their sleek appearance, often bright colours and lively habits endearing them to aquarists all round the world. Many popular species (e.g., Harlequin Rasboras) have been bred in the aquarium and are an important part of the ornamental fish trade. Almost all species are pelagic, swimming continuously.
2.5 cm; pelagic. Indigenous, endangered. Forest streams.
This diminutive species which dwells in acid waters resembles a living jewel. It is similar in appearance to the Two-Spot Rasbora, but is smaller and more colourful. It is delicate and not easily kept by amateur aquarists.
An inhabitant of acidic waters, this hardy species appears to be the only native rasbora found outside the nature reserves. It can be readily recognised by its prominent black lateral band.
10 cm; surface to midwater dweller. Indigenous, endangered. Forest streams.
This rasbora has a bluish lateral band which runs forward from the base of the tail, and tapers off at mid-body. At present in danger of extinction here, but is still common in Johore. This fish is named after the Sumatran island of Banka where it was first found.
6 cm; surface to midwater dweller. Feral, common. Ponds, streams and drains.
An introduced species from Thailand and northern Peninsular Malaysia. Imported in large numbers via the aquarium trade, this very hardy rasbora has become established in several localities on the island, notably in the ponds of the Botanic Gardens.
The famous Harlequin Rasbora, easily identified by the large triangular blotch on its side, is a very well known aquarium subject. It was only discovered in 1902 by a German ichthyologist, who among few other places, first saw this uniquely attractive species in the Singapore Botanic Gardens. The fish has since been wiped out from this locality. In Singapore at present, it survives in certain small streams in the central catchment forest.
Fishes in Singapore
Amazing Fishy Facts
About the guidebook
From A Guide to Common Freshwater Fishes of Singapore by Kelvin K P Lim and Peter K L Ng
Published by the Singapore Science Centre and sponsored by BP
@Raffles Museum of Biodiversity Research and Singapore Science Centre