I want to start running carbon & gfo so Ive been looking into media reactors. My question is actually two fold in nature so first, which is better, to run each media in its own reactor or can I get away with running a 60/40 mix? Second I am really stoked on avast marine's diy kits, they look so sweet, so if i was to run a mix would a 6 cup capacity reactor be enough for my 80 gal? I think it would be large enough but again I want to be sure before I pull the trigger!