They look like a really tiny button polyp, almost fuzzy looking. Where they are located in the rockwork it is difficult to get a clear pic to post for id, they were a hitchhiker on live rock.
Thanks for the warning on zoos. I had read those posts before and b/c of other bacterial goodies that can always be present in fishy water I usually just use the liquid clear bandage on cuts just in case. But after these welts (similar to what a fire coral will do when you are diving) I am now a glove advocate
Gatorolsen