You're welcome
It's always good to know things like that anyways before you get any pet,that way you're not suddenly doing something wrong by accident and you don't waste money either or anything like that
You could definitely try and make a custom tank style cage!Bin cages are good to have lying around anyways,since they make wonderful travel cages and can be used during cage cleanings and things like that anyways.You might be able to find one that gives half a square meter of space if you look hard!