What Do Elodea Eat?
Water plants, like open-air plants, grow by a process called photosynthesis. They take in nitrogen and give off oxygen. American elodea is a widespread water weed native to North America. Water weeds imported from Brazil, also called elodea, look similar to the native species but are invasive in ponds and lakes in the U.S. and Canada. Both North American and Brazilian varieties are widely used in aquariums.
