What eats pond weed?

Grass carp are big-headed fish native to East Asia. They are filter feeders that consume large quantities of aquatic vegetation including pond weed. Grass carp can grow to be quite large, reaching lengths of up to 4 feet and weighing up to 100 pounds. They are often used as a biological control agent to manage pond weed populations in ponds, lakes, and other water bodies.

Other animals that eat pond weed include:

- Koi