Also known as Glassfishes, Bulls-eyes, Ransonnet's Sweeper, Yellow Sweeper, Glass Sweeper, Glassy Sweeper, Rosy Sweeper, Slender Sweeper, Pigmy Sweeper, Ransonnet's Bullseye and Golden Bullseye.
Found in dense schools in deep clear water lagoons, reef walls, under ledges and in caves, often sharing the space with other fish and Moray eels.
They feed nocturnally on zooplankton.
Length - 10cm
Depth - 3-500m
Widespread Indo-West Pacific
Sweepers school during the day, but at night they float high above the bottom to hunt for larger zooplankton.
Several species are triangular shaped.