Board Thread:Questions and Answers/@comment-5693502-20140410203934/@comment-3459763-20140412173045

Well, considering how Visored's can use a cero and gain other Hallow like powers, I would assume that an Arrancar would be able to get the same. Though because no Hollows actually learn about Kido, I doubt it will ever happen, even if they have the potential to use it.