Hide activity feed, members, groups and forums to non members in BP Daily

Hi everyone,

I just joined wpmu dev. I have bp daily theme site and I'd like to hide the activity feed, members, groups and forums pages to non members. Are there any codes, plugins that can help me. I don't have membership levels, I just want only members that have signed up to my wordpress/buddypress(daily) to have access to these pages.

Thanks very much for your help

Ralph