thanks adam,
Would u say glass bottom is a bad thing if i wanted to grow polyps across it? I just today removed all the cc from the bottom until i either add ls or keep glass. I don't doubt what you say at all, but I have a black corner bow and it has a mirror look bottom. Woul any of this change your mind. I realize biologically the sand would probably be better, But does'nt it trap bad bac as well with the algae?
Thanks again