Barbus nigrofasciatus, (Ruby, Black Ruby, ******, Purple Headed), is a much milder mannered fish than B. tetrazona, (Tiger). A shoaling fish thus happiest in groups. Tends to stay nearer the bottom of the tank then tetrazona. Like most barbs, likes a well panted tank, but with adequate swimming space - it is not a fish that spends all day lurking in the plants! Try to get at least 2 males. The males often show their best colouration when 2 males are doing the "spiral dance routine" where they colour up magnificantly and swim around and around each other displaying - often better colouration than when breeding! Same is true of B. conchonius, (Rosy), also incidently.
Nice fish.