Size

Typically, 1 – 6cm.

Identification

Slender body with small head and inferior mouth. This species exhibits sexual dimorphism. Males are metallic blue in colour, have black anal and caudal fins with a blue edge, and black dorsal fins with a red and blue edge. Females are yellow-grey in colour, with two lateral black stripes that go from their snout all the way to the caudal peduncle, which ends as two black blotches.