I know that posting a pet-related question on a diaper forum is wierd, but most of the pet forums I have visited are near-dead.
Anyway... I'm getting two 4-week old Fancy Mice soon, as my friend just had a litter. As such, I need a cage. I'm thinking of getting a wire cage, since they provide good ventilation. But the pet stores here only have cages with bar spacing of 10mm (0.4in) spacing, or bigger.
Plan B is to get a glass tank, but I'm trying to avoid that option due to the lack of space(height-wise).
So, can mice escape through a 10mm gap?