built-in ant moat
One of my feeders has a built in ant moat. I can keep it filled to the brim with water, but it does not keep those pesky carpenter ants away from the feeder. They still find a way to get to the rim so they can crawl on down to the feeder. I tried putting a little dishwashing liquid in with the water. That stops them...it has actually killed some ants, and the others just give up trying. But after we had a heavy rain, the dishwashing liquid found its way into the nectar, so I had to throw it out and put in new. I've tried vaseline on the hanger, and they still craw right down through it. Does anything stop these ants??