I have a 1/3 acre pond. We started out with the surviving pair of mallard babies a few months ago. The population has now gone up to 20-29 mallards hanging around all day. They don't spend the night but show up at sunrise everyday for the free food.

I'm just wondering if that many ducks on the pond will have a significant effect on water quality and possibly create problems for the fish. The pond is not used for swimming.

We enjoy the company but I don't want to ruin the pond. The pond is stocked with CC, LMB and BG.

Thanks