so I have a 150g tank with a pair of fx5's on it now and I wanna add a 3rd filter of some sort with sponges only to crystalize the water .... something large enough for my tank, and also something that is light when it is full unlike these damn fx5's lmao, something that isn't messy when unhooking the lines, quick and easy to clean/take apart and to start up ....does anyone have any recommendations, oh and the cheaper the better I don't wanna spend a crap load of money lol
