Dave,
Get a 5 gallon plastic bucket with a lid, I use the kind that chlorine comes in for my pool. Fill about 2/3 full of chicken scratch (you can buy a 25lb bag for about $4 at the feed store) poor in one packet of yeast and put just enough water in to cover. In about 2 or 3 days it will ferment and sour, throw out about half a gallon. Buy some punch bait (Bills Catfish Bait or Hog Wild at Walmart, be sure and buy the treble hooks that come with a sponge around them) dip the sponge and hook in the bait (I use a small stick for this, you do not want this stuff on your hands) and throw out where you spread the soured grain. In a pond the size of yours it should not take long for the catfish to come in, 10-30 minutes. I would use a cork and be sure to spread your soured grain out so the wind will blow the smell across the pond to attract the fish. This should help you catch them is short order.
