Well coraline algae (The nice purple algae) will grow on the rock naturally. Other than that you could have a nice mat of zoanthids or star polyps grow on it like a carpet but you would need to get a frag of it to get it started.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.