Grass carp

Grass carp is a type of freshwater fish originally from Asia, known for feeding mainly on aquatic plants. They are often used in ponds and lakes to control excess plant growth, helping maintain healthy water ecosystems. These fish can grow quite large—up to several feet long—and are recognized by their streamlined bodies and smooth scales. They are filter-feeders, consuming mainly vegetation, which makes them useful in managing aquatic weeds. While beneficial in certain environments, they can become invasive if introduced outside their native range, potentially disrupting local ecosystems.