[Fluffagrams]

It can be quite challenging to successfully house a group or a pair of hamsters unfortunately and whilst the cage needs to be large enough to give each hamster some space, several experienced keepers of dwarf hamsters have found that too large of a cage can actually increase the risk of falling out.

You'll need to avoid cages with levels and any hides should have more than one entrance to prevent one hamster being bullied into a corner with no way out. It's also beneficial to avoid using food bowls with pairs and groups and they tend to do better with scatter feeding.

Robos can often be sneaky about showing that there is conflict so if you do keep them together you will have to monitor them quite carefully. You'll need to be looking for things like weight differences which would suggest that one is taking more than their fair share of food, chasing each other and any signs of injuries (no matter how small). Despite all this you still can't always avoid serious injury so you will need to make sure that you have spare cages ready in case you need to split them up.