Well it does cost more. The marineland is 190 and the fx5 is 233. Or atleast these are the best prices I've found on them so far. I know the fx5 has a good rep, but my lfs
(a good one) reco'd the marineland and said it's easier to get replacement parts...so I'm torn. I can't find an eheim cheap enough so at this point I'm just trying to choose between the two. This will cost more than anything I've ever purchased for any of my tanks so I'm just feeling a little indecisive.