Not sure what happened. The pond is connected to a larger pond which I am in the process of blocking off and only use it to maintain the water level in my pond. The water always looks like this, very cloudy. I think it might be the turtles stirring it up. I also found two large animal holes right next to the water today. I am not sure what lives in there but last year I saw a beaver/muscrat in the pond. Any ideas?