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Fluval Canister Filter, FX4 Filter (250 Gal)

Fluval Canister Filter, FX4 Filter (250 Gal)

Q: 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.

Q: 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!

Q: 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.

Q: 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.

Product ID: 87216451

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Details

Brand
Fluval
Product Grade
Performance
Item Weight
0.4 Kilograms
Style
Canister
Global Trade Identification Number

💧700 US Gal/hr flow rate

🔄Auto air evacuation every 12 hrs

🤖Smart Pump microchip tech

Description

💧 Elevate your aquarium game with smart, powerful filtration!

SMART PUMP TECH - AI-driven microchip optimizes pump performance for flawless operation.
COMPACT COMPLETE - Sleek 16.5-inch design with all mechanical, chemical, and biological media included.
EFFORTLESS SELF STARTING - Just add water and plug in—automation that saves time and hassle.
POWERFUL 700 GAL HR FLOW - Turbocharge your aquarium’s clarity with rapid multi-stage filtration.
HASSLE FREE WATER CHANGES - No heavy lifting—attach hose and let Smart Pump handle the rest.

The Fluval FX4 Canister Filter delivers a robust 700 US gallons per hour flow with advanced Smart Pump microchip technology that continuously optimizes performance. Featuring self-starting convenience, automatic air evacuation every 12 hours, and easy water changes without heavy lifting, it ensures maximum efficiency and user-friendly maintenance. Its compact 16.5-inch design fits under most aquariums and includes all essential mechanical, chemical, and biological media for superior freshwater and saltwater filtration.

Specifications

Brand	Fluval
Product Grade	Performance Part
Item Weight	0.4 Kilograms
Style	Canister
Global Trade Identification Number	00015561102148
Manufacturer	FLUVAL
OEM Part Number	A214
UPC	015561102148
Country of Origin	Italy
Item model number	A214
Product Dimensions	39.62 x 39.62 x 44.96 cm; 400 g
ASIN	B00N45GLZQ

Have a Question? See What Others Asked

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 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 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

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

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