[Ria P]

With they detolf being a display cabinet couldn't a glass shelf be used as a secure chew proof divider?
Of course the glass would need to be covered with a mat or something so its not transparent.
Or use two shelves with a gap of a couple of inches and fill the gap with substrate.

My way of thinking is the following:

Better to have two dwarf hamsters in two ca 70cm long cages than have one hamster in a huge cage because that's one more hamster saved from possibly ending up in a Spelos type cage.

I don't think a dwarf/dwarf or dwarf/robo detolf share would matter because i have hamsters living side by side.

Right Petite, where shall we run for cover, lol.