There is more than one model of Fluval Canister Filter, and each one comes with equally unique maintenance requirements. While some tanks with FX6 may require constant maintenance, others can run for six months without any problems.
How many gallons is a FX6 good for?
Designed for aquariums up to 400 gallons, FX6 is the high-capacity workhorse of Fluval’s canister lineup, enhanced with all the power and reliability you’ve come to expect from a high-performance filter.
Why is Fluval FX6 noisy?
It will wear out and eventually, it will need to be replaced. If you notice a noise and vibration, you may have to remove the pump to inspect and clean the impeller. At the same time, the bushing should be replaced.
What is the difference between fluval Fx4 and FX6?
The Fluval Fx6 is designed for larger tanks up to 400 gallons, while the Fluval Fx4 is meant for tanks of 250 gallons or less. There are not a lot of other differences between these two filters, other than the fact that the Fluval Fx6 has six layers of filtration while the Fluval Fx4 has only four.