Hey all, I just installed a new Reef Octopus classic 2000 HOB skimmer . I LOVE it so far, but my question is in watching a you tube video on it , the guy says you can use the side chamber where the return plumbing is for different media . Does anyone have this skimmer? Is this true? If so have you used it in that respect? What type of media? I know, that’s several questions all rolled in.