Is there any flooded area's? When the water gets muddy I like to flip and pitch dark colored jigs, worms or frogs in shallow water. I have literally killed bass in water 1-2ft. Fish sloooowwww. Also look around your pond more than likely there is an area that is less muddy, could be very suttle difference but a difference. Fish tend to concentrate in those area as well.
My alltime favorite a black/blue jig with a black/blue crawfish trailor fished in shallow water.