just to let up any confusion. when i said community tank, i didnt mean it cant be kept with other species of fish. it can, as long as they are just as mean. by community tank i was referring to a tetra, barb, danio kind of community tankbecause you were asking about keeping them with barbs. as far as live food goes, i fed mine rosy reds, or small goldfish sometimes. also use crawfish sometimes, but not to sure if the jewels ate them, or if i even used crawfish when i kept jewels.