Know what you're dealing with before trying to get rid of (or at least control) common aquatic weeds that gross out swimmers ...

Common Pond Issues. Jenna Nees; May 22, 2025; ... Duckweed and watermeal are two free-floating plants that can wreak havoc on a pond. These two plants are extremely small (duckweed is 1/8 to ¼ inch in ...

However, you should not use copper products if there are trout or koi found in the pond. Duckweed and watermeal are two free-floating plants that can wreak havoc on a pond. These two plants are ...