BuddyPress Daily Theme Option

I am currently using the Daily theme as the main page for the blogs of our faculty and staff at the college that I work for.
While I love the Daily theme (as an administrator), I don't necessarily want to allow all of the faculty and staff to be able to choose this theme as one of their theme options for the personal blogs (sub blogs). There's several themes I'm allowing the sub blogs to choose from, but if there is a way I can hide Daily from the choices, I would love to know how. Thanks!

Robert