The water in my pond is muddy. Is there anything I can do to clear it up?

Yes, but it may not be the best direction to take for your pond or lake.  Muddy water help to minimize weed growth by filtering out sunlight.  A possible alternative to clarifying the water is to “dye” the water with a product such as Aquashade.  This product gives the water a beautiful appearance, while keeping the sunlight filter in place.