There is a possiblity that I can buy a 155gal bow front and stand for a great price. It comes with 2 magnum 350 canister filters. Any comments about this system with an added sump/refugium instead of the RR 120 gal I was getting ready to buy. Right now I'm running a 55 gal with a Aqua-clear HB. I could really use some pro's and con's. Thanks