Chilodidae
The Chilodidae, or headstanders, are a small family of freshwater characiform fishes found in northern and central South America. This family is closely related to the family Anostomidae and is sometimes treated as a subfamily, Chilodinae, within Anostomidae.
This family was formerly referred to as "Chilodontidae". Due to issues of homonymy with two other family-rank names called "Chilodontidae", the fish family was required to change spelling to Chilodidae.
Chilodids have colourful markings, making them popular in aquariums. They are small fish, all less than in adult length, and are distinguished by their habitual head-down postures.