#ed_op#DIV#ed_cl# I don't think its a sponge, I could be wrong its all over this brown leaf like algae. Its almost like a hair algae but its white check out this photo have any idea?#ed_op#IMG alt="image file name: 2k0ac4627af4.jpg" src="http://www.captivereefing.com/richedit/upload/2k0ac4627af4.jpg" border=0#ed_cl# #ed_op#/DIV#ed_cl#