Question as I am new to the sump setup situation for my new tank. Can I setup a media reactor on my return line after my return pump so that I can avoid another pump in my sump? I have a Max-E 260 with sump upgrade and am running a Octo Varios-4 pump. If I do it this way will I be affecting anything negatively? Also is a GFO/Carbon media reactor even necessary to run all the time? Thanks in advance for any advise.