Habitat: Mountain range.
Breeding: Not observed.
The male is more red than the female, becoming deep red when breeding. The dominant male often has the brightest red color. The female is lighter, with yellowish fins.
This fish is widely distributed throughout the island up to an elevation of about 600 meters. Juveniles are differ than adults. They have bright black lines on there body. But those black lines disappear when they become adults. Adults are silver and green in color.
The black ruby barb or purplehead barb is a tropical cyprinid fish endemic to Sri Lanka where it occurs in forested streams from the Kelani basin to the Nilwala basin, they are found in streams on hills around 1000 ft in elevation.
RAn uncommon fish restricted to the shallow slow flowing shaded streams with pebbles in South-western lowlands up to about 300m elevation.