Setting up a new QT. I no longer have my HOB filter. Going to use live rock that's been in my sump for months as well as some bottled bacteria. Would a couple pieces of live rock from my sump and water changes suffice in lieu of a HOB filter? I have a spare skimmer if that would work with the live rock instead of the HOB but is that even necessary with the weekly water changes on a 20G? The fish arrive Friday and I just realized I don't have the HOB, but if I can do without I would rather at this point. Maybe #reefsquad or @ngoodermuth can shed light on this? Thanks in advance!

