Thank you guys for your reply, sorry I didn’t specify enough when I mean shared we just say like it’s our hamster but I am at university and he is not so he has Oreo at his house a majority of the time I have had Oreo at mine twice now as he couldn’t look after him, for example now we have gone into quarantine and he is having to look after his grandad so cannot look after Oreo etc ... and yeah Oreos cage is big enough he has 3 floors 22x14” so has an area of 924” as I have used the cage with previous hamsters and it has been suitable. Thank you for the help !