Hi all! I'm new to the world of saltwater aquariums and could use some advice on filtration. I have a 55 gallon tank and will have 60 lbs live rock and 50 or so lbs sand. I've decided to purchase a Remora protein skimmer and want to know what the best option is for additional mechanical filtration. Canisters? Hang on back power filter? For either of these do you only run the carbon periodically, or ever? I don't have room for a sump or a fuge, so what would the best route be? My long term goal is to have a nice reef tank w/ a few fish. Thanks!