Pond treatment for lillies & vegetation

I use shoreline herbicide around the perimeter of my pond so I don't have to weed eat it every time. Its been awhile since I researched it but they do make herbicides specifically for ponds. If I remember correctly its not the chemical that kills the weeds that is harmful to the fish but the surfactant in the mix. It can get on their eyes and blind them.

You’ll want to get an aquatic herbicide like Renovate. We had a pond that was covered with lillie’s several years ago and hit it a few times with this stuff. Haven’t had an issue since.