The Black Ruby Barb originates from Sri Lanka, where they were once plentiful in the forest streams in the upper elevations of the Kelani and Niwala river basins. This native habitat is composed of dense vegetation and slowly moving waters, which are cooler than many tropical areas. The water in these streams is soft and acidic, and the river beds are composed of sand or fine gravel. Detritus and algae are the primary foods of the Ruby Barb in its natural habitat.
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