I don't have fx5 but I have an fx6 and a 2262 on a 180g. I bought the 2262 used, and its several yrs old, the fx6 is new. The 2262 was my first eheim, I can now see where the eheim fanboys come from, I'll definitely buy more eheim canisters. I have 2 405's and the fx6 running in the house, the 2262 is quieter than all of them, and its so simple, there is so little to go wrong with it, its built tough, I'm guessing the new fx6 will not out last this used 2262.