I know I will need a scrubber..but, What does one look for in a C/ filter? They seem to be available in many sizes, bed depths and weights? I have a 414 cu ft stinky space with 1kw of HPS and 530 cfm 6†inline fan. I think this is the one I need, Carbonaire 6 Inch Carbon Filter - Plantlighting Hydroponics But any advice would be appreciated. Thanks