Hey guys I have a question that I can't seem to find the answer to anywhere. My pond is feed mostly by runoff from my property, and I just put down some fertilizer to start off the grass growing season. My question is: the grass has a lot, I mean a lot of weeds that I would like to kill. Since the water will runoff into the pond I am afraid to use a "weed and feed" on the grass. Is it alright to use a commercial weed and feed or any other suggestions are helpful.