hi everyone i'm thinking about turning a 55gal glass aquarium (can't drill it) Into a reefwith posibly a few fish. What all would I need minimum before I could even think about putting coral inside the tank and what kind of filtration should I use? I've only have had experience to canisters and only with tropical fresh water tanks ( I have a 110gal wide, cichlid tank). thx for any help you can offer this salt water nubie