The fish is characterised by a torpedo-shaped body with silver scales, a red line running from their snout, through the eye, back towards the middle of the body; and below the red line, a black line that runs the length of the fish to the tail. As they mature, a distinctive green/blue marking on top of the head develops. This species reputedly reaches a length of 15 centimetres (5.9 in) but typically will only reach 9–11 centimetres (3.5–4.3 in) They are active shoaling fishes.
- Community fish
- Happy and friendly with many others
- Larger tank required