Mizu-chan - yeah, i think they're flipping adorable little things. They're tiny, i'd say about 1/2 inch
SeaSerpant - Thanks! They are pygmy cories (corydoras pygmaeus) and they're TINY i love them. Yes, I was thinking about putting moss on top, i think it could look cool, moss "curtains" in front of some of the little caves could be neat too if i get the right kind of moss that would "drape" that way.