About Rasbora borapetensis Smith, 1934
Commonly called the blackline rasbora, this species has a streamlined, silver body. A dark brown or black mid-lateral stripe runs from the gill opening to the front of the caudal fin base, and a gold stripe sits directly above this dark stripe. The caudal fin is bright red, and unlike the related species Rasbora einthovenii, it has no black pigment in this fin. The two sexes of the blackline rasbora look similar, but adult females are slightly larger than males. This fish reaches a maximum length of about 2.5 inches (64 mm). Blackline rasbora inhabit the midwater to surface levels of ponds, ditches, canals, and reservoir margins that are 2 metres (6 ft 7 in) deep or less. It prefers water with a pH between 6.5 and 7.0, water hardness (dH) between 5 and 12, and water temperatures between 22 and 26 °C (72 and 79 °F).
