I am also concerned with this, so what I did was put a cup over the food so that its all together and pressure from the top will push down on the bottom ones. I hope this works!
I am also concerned with this, so what I did was put a cup over the food so that its all together and pressure from the top will push down on the bottom ones. I hope this works!
You can use PVC. Depending on how many mice you have in a tub, you may need something larger. I just built a square food hopper for the front of my rack frames. I never had a problem with mice eating through 1/4".