Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants How long will weeds continue to grow in deep water

If it's milfoil, I'm pretty sure it can grow as deep as 12 feet. I think hydrilla is capable of growing near that depth as well. Google both and see if either resemble what you pulled up. Both are considered invasive, and can overtake a pond if not managed. Before you raised your water, was it blanketing the surface?

Some of the best fishing I've ever done has been on BOWs where either was prevalent. Lots of O2, cover and cooler water in the summer, warmer water in the winter. LMB as well as SMB love to hang out in it because that's where the forage wants to be too. It's got both good and bad traits. When either mat on top, you'd think it was just solid grass, but there's tunnels all thru it underneath.

How big and deep is your Pond? Did the grass you pulled up look green and healthy or was it turning brown? There are some chemicals that will kill it but if you're restricted on how to combat it, you may need to look into a few grass carp if they're legal where you live. Chemicals will deplete the oxygen as the grass dies back so there is a measure of how big an area you can kill at one time without endangering your fish.

If I had a BOW with enough depth and surface acreage, I wouldn't mind having either but it can be a bear to control.