Looking to get a better filter possible a canister filter... i really want something quite and highly affective... i have a Whisper HOB filter no bio wheel or anything just a standard filter, the thought of the water hanging out of the back of my 55 gallon is just kinda weird and i bought this filter for my 30 gallon that didn't have storage space.... i have plenty of storage space in my new stand with cabinets... How hard is it to install a canister filter?