#ed_op#DIV#ed_cl#yeah.....the idea is to remove the carbon and skimmer because they will remove the "treatment chemical" very quickly and reduce its effectiveness......just remember that without the carbon and skimmer, youwill have changed the dynamics of the ecosystem (filtering) so keep a watch on paramaters.......#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#/DIV#ed_cl#