I currently run a magnum 350 on a 55g reef and the media is carbon and a filter sleeve. Is this hurting my reef? I'm also wondering if I should add a hob protein skimmer and only run the canister on a timer. In the future I would like to go the sump route but currently pretty broke and wantted to start focusing on new live stock. But if this is hurtting the tank ill continue on the equipment route. You can also switch out the carbon for some water polishing media should I just be running that. Thanks