Just picked up a ViaAqua 750 for my 55g. I have always used 2 HOBs for my tank, but decided to consolidate to 1 outlet (never enough outlets). Anyways, I have never used a canister so trying to figure out the optimum media for it. Currently I have 2 media bags filled with carbon in the bottom tray, Seachem Matrix in the middle and floss in the upper tray. I was wondering opinions on this configuration. BTW, the bioload is pretty high, it is housing a 6" Red Devil and a pleco that is also quite large. Any suggestions are welcome, thanks