Hi Rainman, the good news is the pond has only had a slight weed control for Cattail. I got into trouble for saying this before, but I used Defender bought at Walmart for less then $10, mixed 4 oz. to a gallon and it worked great. The pond is very clear because I don't have anything in the pond that would stir up the bottom. It is wonderful to walk around my pond as see pond life as if I was looking into an aquarium and even photograph it.
Last edited by John Monroe; 04/29/16 01:23 AM.
