I think eheim is better made, longer history,better quality, better flow for biological media, and doesn't take up as much space. Fx5's are just a big water pump, but with the fx6 out it'll be interesting how it is. Also, from all the forum reads I do i swear fx5 people don't know nearly as much about this hobby or fish as eheim people, haha.
I suffer from MTS & have a little bit of everything
Last edited by CrypticLifeStyle; 02-25-2013 at 07:44 PM..