so I bought a four pound live rock that was covered completely with a nice dark purple coralline/within in a week most of it has turned green.its not slimy and I cant remove it from the rock.i actually like it.just wondering if anybody knows why this might of happen.i believe its definitely green coralline.also I have these red chunks of what appear to be a coral rock type of flower poppin up out of the rock.thanks much

