I hve 3 ducklings (2 mallards and a runner) in with 10 chicks. I agree the ducks can be messy.try this, it relly helps. put a tray with a small edge around it. I used my son's lincoln log lid. make sure it's bigger then the waterer but not too big. just big enough for them to stand on while they are drinking. put down a few layers of paper towels, folded to fit the tray. then put the waterer on something to raise it up a bit. i have mason jar waterer and put the bottom part of a round chick feeder under it. then keep the food just outside the tray. if you have a big enough space you could put the food and water on the tray. then just change the paper towels. trust me, this takes care of most of the mess. i have had my babies for 5 days now and have only had to clean it once. other then just stirring up the litter. good luck, Krista