How is the longevity of the FX6 compared to other filters people have owned? (primarily Eheim). I will be using it in a turtle tank if that matters...

I've been using the Fluval FX5 on my 100 gallon red eared slider turtle tank for about 12 years now. It's worked flawlessly over the years. I'm about to replace it with the FX6 due to various things starting to get worn out. So yes it does have pretty good longevity.

I have a 40 gallon tank for two read eared sliders. Would this filter be too strong or just right for my tank? Also, does it come with the hosing?

I've got it on a 55 gallon and it works fine! With turtles you want at least 3 times the filtration so 40 gallons of water needs a 160 gallon rated filter or stronger. Also it is recommended that you house your turtles separately as they are going to grow to be 8-12 inches long and are solitary in the wild! I recommend you join red ear slider turtle owners resto group on Facebook and they will have all the information on best diet best filters and best tanks for your turtles!

I am sitting up a 75 gallons tank in my office i don't want to clean it a lot what fluval pump would you suggest

Frequent water changes aren’t a necessity if you set your tank up accordingly. Look up low maintenance/ self sustaining and see for yourself. I have a 75, 50, 29, and two turtle tanks, turtles being the the only ones I regularly change water. No deaths, plants are healthy(NO SUPPLEMENTS OR CO2 added), water is clear, and I’m using HOB filters with only ceramic balls. There’s guides for what you want online that will help far more than these comments.

Fluval fx4 or fluval 406? 80 gallon planted tank. what do you think?

If you have a heavy stock of fish I would aim for 7-10x total gallons of filtration. Currently running 2 fx6 on my 260 gallon which is about 7x flow rate and I’m debating adding a third to get closer to that 10x mark. These provide great bio filtration and if you set them up right with some tweaking can agitate the surface of the water which increases oxygen in the water and allows more life to exist in your aquarium.

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Description

💦 Elevate your aquarium game with the FX4—where smart meets powerful filtration!

COMPACT POWERHOUSE - Sleek 16.5-inch design fits under most tanks without sacrificing performance.
EFFORTLESS MAINTENANCE - Easy water changes with hose attachment—no heavy lifting required.
INTELLIGENT SMART PUMP - Advanced microchip tech auto-optimizes performance & self-starts—plug in and relax.
TURBOCHARGED WATER FLOW - Pumps a massive 700 gallons per hour for crystal-clear aquatic environments.
PRECISION FILTRATION SYSTEM - Stackable media baskets eliminate bypass, holding 1 gallon of mechanical, chemical & biological media.

The Fluval FX4 Canister Filter delivers a powerhouse 700 gallons per hour flow rate with advanced Smart Pump technology that continuously monitors and optimizes performance. Its multi-stage filtration system features removable, stackable media baskets holding up to 1 gallon of media, ensuring efficient mechanical, chemical, and biological filtration. Designed for convenience, it offers self-starting operation, automatic air evacuation every 12 hours, and easy water changes without heavy lifting. Compact and robust, the FX4 fits under most aquariums, making it the ultimate choice for serious aquarists seeking pristine water quality with minimal hassle.

Specifications

ASIN	B00N45GLZQ
Best Sellers Rank	#121,392 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,191 in Filter Accessories
Brand	Fluval
Brand Name	Fluval
Colour	Black
Country of Publication	Italy
Customer Reviews	4.4 out of 5 stars 2,369 Reviews
Flow Rate	2650 Liters Per Hour
Global Trade Identification Number	00015561102148
Importer Contact Information	MAPLE PETS INTERNATIONAL PVT LTD
Included Components	Product in Descripton
Item Dimensions L x W x H	39.6L x 39.6W x 39.6H Centimeters
Item Type Name	FX4
Item Weight	6.43 Kilograms
Manufacturer	FLUVAL
Manufacturer Warranty Description	3+2
Material	Plastic
Material Type	Plastic
Model Number	A214
Packer Contact Information	MAPLE PETS INTERNATIONAL PVT LTD
Power Source	Corded Electric
Product Dimensions	39.6L x 39.6W x 39.6H Centimeters
Product Style	Canister
Style	Canister
UPC	015561102148
Unit Count	1 Count

Reviews

C**S

The best you can get

The best filter ever had in 20 years

1.04.2025

S**U

What to write about an excellent product

Very good product. But bit pricey but you get what you pay for. Cleans the tank in jiffy. If you have a large tank then this is a nice product. You can also use your own medias along with provided along with the product. The medias provided along with the product is more than enough. I use it in a four feet tank and FX4 approximately cycles the tank 8 time as per my calculation. This is more than enough for the cichlid tank in which I have seeded this FX4.

24.09.2021

V**Y

It got delivered before the committed date and it was packed in a wooden box so the product was intact so good Job Petlink guys

Superb packing and delivery by Petlinks .It got delivered before the committed date and it was packed in a wooden box so the product was intact so good Job Petlink guys. And about the product it was a sealed box pack so what ever Fluval gives in that pack it was there so no complaints and I bought for my 125 Gal cichlids tank the performance of the product is awesome .It is one of the best of its kind so super happy with it

26.01.2018

A**D

The best there is

One of the best out there . Keeps my large freshwater aquarium crystal clear and does the job it is meant to do. 5 stars

26.06.2021

V**9

Not to buy if u live in india.

Had to buy few rubbers worth 1000 rupees.. had many leaking problem.

7.10.2017

A**D

So far, this is the best filter I've used!!

I've been using it for over a month now, it works great on my 200 gallon aquarium, its very quiet and incredibly powerful.

16.08.2021

A**R

Good

We have been searching for a good filter for ages. Finally found the perfect one. Our tank is 500lts and this filter functions very well.

2.02.2020

A**R

Good

Good cleans well and sturdy. I don’t use the water pump

17.02.2020

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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2 weeks ago

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Fluval Canister Filter, FX4 Filter (250 Gal)

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Common Questions