I bought a xenia frag that was 1"x2", sat it on a rock, now it's about 8"x6". I would like to get this to spread onto some more rocks. is sitting the smaller rocks on the colony the best way to do it?
also, what's the best way to get zoo's and yellow star polyps to spread? I've had good luck with xenia and mushrooms, but my zoo's and stars haven't spread at all.