Ant Proof Tray - Waterless, Moat Free Cat and Dog Food Tray for Crawling Pest Free Pet Food Feeding Station. Kitchen Sweets and Trash, Ant Free Platform.

We had a serious ant issue last summer and our auto feeders were completely infested. I found these trays on Amazon and they've been great! They're a little pricey but you put this gel goop above the feet of the tray and ants don't walk across the goo. It doesn't kill the ants, but they stay out of the food.