good morning! In the process of setting up my first tank reefer 250. Looking at the sump layout and all that good stuff. And I’m a bit up sure on the order of things. Filter sock is mechanical. theres a second plastic sock along side could I use another filter sock for more mechanical filtration? Or best to stuff it with filter floss? I have marine pure ceramic bio balls can these goi in the refugium area? And skimmer last?
