Aquarium Filters · owner-verdict comparison

Fluval 407 Canister Filter vs Fluval FX6: what real owners say

Real owners lean toward the Fluval 407 Canister Filter: 86% of 65 owners recommend it, vs 77% of 349 for the Fluval FX6.

Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score

Fluval 407 Canister Filter

86%of 65 owners recommend
86% recommend · 5% neutral · 9% don't
Owners praise
  • Runs whisper-quiet, often inaudible unless you touch it
  • Tons of media space and fully customizable filtration
  • Strong flow keeps water crystal clear
Owners complain about
  • Expensive unless bought on sale
Full owner report →

Fluval FX6

77%of 349 owners recommend
77% recommend · 8% neutral · 15% don't
Owners praise
  • Keeps water crystal clear
  • Huge media capacity and powerful flow for big tanks
  • Long intervals between cleanings
Owners complain about
  • Expensive, especially next to SunSun
  • Large, needs a tall cabinet or floor clearance
  • Finicky to prime and gurgles when not below water level
Full owner report →

What Fluval 407 Canister Filter owners say

“Best filter i have had”
— @glennryan6655 on YouTube
“Works great”
— @terjehimle3107 on YouTube
“i have a 407, it can be a pain in my ass. cleaning it is such a hassle lol, but i have found everything has to be set PERFECTLY in it or it wont run at 100%”
— pxyton- on Reddit

What Fluval FX6 owners say

“I use fx6 on my bowl betta tank and his happy.”
— @linslins4860 on YouTube
“I have an fx6 running on my tank and it’s the best I have ever used.”
— @MrBertie1982 on YouTube
“If it wasn’t for all those screws just to open it…”
— @deShadua on YouTube