[cypher]

Some hams do prefer smaller spaces, a lot depends on the set up though, with lots of hideouts & a really good deep layer of substrate to burrow in most will enjoy the space.
Half a detolf would be ok though if you really think your robo needs less space, if you are thinking of putting a pair in the other half it may be a bit of a squeeze to get two of everything in & you would need another cage ready in case you had to separate them so maybe think about just getting the one?