#ed_op#DIV#ed_cl#The answer is simple... the protien skimmer helps to remove organic waste produced by both fish and corals. Though it is not essential if you dont have corals...however with the annomie you maywant one. Just my thoughts. later#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#tigersax7#ed_op#/DIV#ed_cl#