Definition: Sater is a type of fish found in freshwater lakes, rivers, and brooks. They are known for their unique appearance, with their brightly colored fins and bill that can be up to 20 inches long. Saters are also very adaptable, able to swim upstream or downstream in water. Sates are usually kept as pets due to their friendly nature and the fact they require minimal care. They do not need a lot of space, being an aquatic species that prefers cooler waters.