Q: Are Sweepers small? ¶
A: Yes, and tropical marine perciform fish of the family Pempheridae.
Q: Are Sweepers nocturnal and seek shelter under ledges or in the caves? ¶
A: Yes, and nooks, and crannies of reefs or eroded, rocky shorelines during the day.
Q: Are Sweepers occasionally kept in marine aquaria? ¶
A: Yes.