Black Ruby Barb "Puntius nigrofasciatus" bio balls sometimes revealing some of the

sometimes revealing some of the front teeth

It is extremely popular with aquarists because of its unusual beauty

Its body is a mottled dark brown with white dots and its pectoral and tail fins are yellow

Subdominant males will normally display a drab brownish purple coloration with some orange or yellow highlights

Black Ruby Barb "Puntius nigrofasciatus" bio balls sometimes revealing some of theThe black ruby barb (Pethia nigrofasciata) 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 (300 m) in elevation.