<a href=showthread.php?s=&postid=9453754#post9453754 target=_blank>Originally posted</a> by ckoeper
Black Velvet texture, hitchiker on live rock, grows and spreads fast, 1/4 inch thick, now on three diferent rocks.
What is it? Is it reef safe? Do I need to remove it? Boiling water applied with syringe removes it.
Any help appreciated. picture in gallary
Thanks