I'm following a CPR Bak-Pak 2 on ebay ready for purchase. But before I spend the 140 bucks, I wanted to know if it's worth it to have in my tank along side of my HOB Marineland Penguin 350 filter. I am starting a FOWL. I have 160ppm nitrates at the moment. Will a protein skimmer remove nitrates? I don't have a sump yet and won't have one until later down the road. Maybe.