Yeah Im thinking it might be the food. Rodents need a totally different food than the other listed on that bag. They need higher protein. I too use Kent rodent diet for the mice, norway rats and ASF's. I only give alfalfa or timothy hay a couple times a week as a snack and added veggies. The water bottle thing is also a good thing to remember. You cant fill them all the way to the top or it will not create the vacuum needed to let water out. (I too found this out the hard way when a rat was killed by another) When you fill it leave it down a half inch or so from the top. Turn it around and test the ball with your finger until you see bubbles in the bottle and some water drips out. Then its ready to go. Let us know how the new ones work out![]()