Rasbora
Rasboras are a diverse group of small freshwater fish belonging to the family Cyprinidae. They are native to Southeast Asia, with species found in a wide range of habitats, including rivers, streams, lakes, and swamps.
Typically, rasboras are characterized by their small size, usually ranging from 1 to 7 centimeters in length, though some species can reach up to 12 centimeters. They often possess slender, torpedo-shaped bodies, making them agile swimmers. Their coloration varies considerably between species, exhibiting shades of silver, gold, red, black, and iridescent colors. Many species have distinctive markings, such as stripes, spots, or patches.
Rasboras are popular aquarium fish due to their peaceful temperament, vibrant colors, and relatively easy care requirements. They are generally schooling fish and thrive best when kept in groups of six or more individuals. A well-planted aquarium with plenty of swimming space is ideal for rasboras.
The diet of rasboras in the wild consists primarily of insects, crustaceans, and zooplankton. In captivity, they readily accept flake food, small granules, and live or frozen foods such as bloodworms and daphnia.
The taxonomy of rasboras has been subject to considerable revision in recent years, leading to changes in their classification and the transfer of some species to different genera. As such, the exact number of rasbora species is somewhat fluid and subject to ongoing research. Common rasbora species in the aquarium trade include the Harlequin Rasbora (Trigonostigma heteromorpha), the Espei Rasbora (Trigonostigma espei), the Glowlight Rasbora (Trigonostigma hengeli), and the Chili Rasbora (Boraras brigittae).