Is this cage big enough for a ferret?

so i have two rats and this is their cage (this isnt how empty it usually is,its just in the middle of being cleaned) and they are getting pretty old, after they pass I want to get a ferret but idk if i need to buy a new cage or if this cage is big enough, I also read that I need two, i dont think the cage is big... show more so i have two rats and this is their cage (this isnt how empty it usually is,its just in the middle of being cleaned) and they are getting pretty old, after they pass I want to get a ferret but idk if i need to buy a new cage or if this cage is big enough, I also read that I need two, i dont think the cage is big enough for 2 but I do have alot of time to give lot of attention to one so I think I would be fine getting 1
https://imgur.com/a/dgEDi
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