So far no. One rack has a small piece of wire cut from in between two squares and the other doesn't but i've seen all the mice eating just fine. The only problem i have is that the tall rack doesn't have an area blocked off for food and the mice spread the food all over the top, which is really hard to see under the tub above it.
The Rats have 1/2" wire and eat just fine out of it too. It's cute watching them reach up and grab the food, bite off a chunk and pull it trough.
The top slot doesn't have a tub because the blocked off area i guess was chewed open? before i got it.
I'm going to Lowe's this weekend to get some more wire to replace it and I can spread them out a little more... Everyone's a little cramped right now because i was given 10 extra mice plus 3 ASFs that i didn't expect...
