#ed_op#DIV#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#I have had my 20 gallon reef tank set up for 2 months now. I am starting to get some purple color on my live rock. With that purple color is also some green. Is the green good or bad????#ed_op#/DIV#ed_cl#