The Sweepers Family, known as Pempheridae, encompasses small, nocturnal marine fish predominantly found in tropical and subtropical waters. Characterized by their compressed, disc-like bodies, large eyes adapted for night vision, and generally subdued coloration, Sweepers often measure less than 15 cm. They exhibit unique schooling behavior, forming tightly packed groups and primarily feeding on plankton and small invertebrates at night. During the day, they seek refuge in reefs, caves, and under ledges. While their reproductive behaviors are not well-documented, they are believed to practice external fertilization with pelagic eggs and larvae. In the marine ecosystem, Sweepers play a vital role in controlling plankton populations and serving as prey for larger nocturnal predators. They are crucial components of coral reef ecosystems, contributing to the biodiversity and balance of these underwater environments.