I'VE USED CORMEAL, COCO WHEAT, MALT O MEAL. ANY IF THOSE WORK REALLY WELL. I ALSO MAKE A TRAIL OF IT OUTSIDE IN THE AREA THAT THEY SEEM TO BE COMING IN. IT IS AMAZING AND SAFE FOR PETS IF THEY HAPPEN TO GET INTO IT OR MOST ESPECIALLY FOR OUR LITTLE ONES IF THEY'D GET INTO THE AREA IT IS DOWN ON IN THE HOUSE....... GOOD LUCK, THIS REALLY WORKS. I HAVE USED THIS METHOD ANY TIME I HAVE ANTS.....