I will be getting an fx6 in the near future, I just didn't want to spend $350 on one atm due to other projects am putting my time into. Also I only open my eheim 2262 once every 6 months. If it's fairly clean I leave it up to a year. Reason why I went with 2 x sunsun its not only because ive seen the results others get with them and they do have fairly same design as the marineland 360 I have on my 55 gallon, I had that canister for 4 years and opened it maybe 5-6 times. Never had a problem with it, no leaks , does a nice job keeping tank clean and design makes it a 10 minute clean job when I do maintenance to it. Hoping I get same luck with these 2 x SunSun's ^^