I remember there was this really cool story about a stunted foal (or microfluffy?) who an old scientist kept in a vivarium. His only direct companion for most of the story was a dung beetle in there to clean up the waste.
I would love to read it again. There was even a part from the dung beetle’s point of view where it describes not having any beef with the fluffy, because it’s actually in harmony with the vivarium’s ecosystem.