Chili rasbora, a very small, delicate species of ray-finned fish, are native to South West Borneo, Indonesia. They inhabit slow moving, heavily vegetated, blackwater peat swamps. Their small size makes them ideal for nano tanks, where their stunningly beautiful colors make them a standout attraction. Their name comes from their intense, bright red coloration, resembling small red hot chili peppers. They can be shy and prone to stress in small numbers, preferring groups of eight or more. Their environment should be heavily planted with abundant hiding places. When they feel secure, they can be refreshingly bold, showing lively curiosity.