I purchased this for a 20 gallon tank to help with cloudy water from algae as my little Aqueon filter couldn't hack it. I took it out of the box and whoa, it's a beast! I thought maybe it was going to be too much filter for the tank, I was wrong, it's a great size. The canister itself goes together very nicely and both inlet and return connectors are clearly marked and very strong. The hoses are beefy and very stiff, which is the only troubling issue that I'm dealing with. The very simple and small instruction pamphlet suggests to soak the hoses in warm water to make them more pliable. I did this, it worked ok, until the hoses got back to RT. The tube sizes are quite large and the tank lid does not sit flush. I belive I will change to a tank mounted light rather than a top. I've found the intake tube to be very long and is sitting at the bottom of the tank, I'm not really a fan of that, but so far it seems alright. Priming... well, the priming pump on the canister is smooth and has decent suction unless there is a lot of air in the canister, and this made priming the tubes quite frustrating. I'm not an expert, fairly new at keeping fish, and I've always used a hang on the side filter, so this was a new method of filtration. It took me about 15-20 minutes to get the tubes properly primed and full, how I did it still not sure, but when it happened, outflow was nice and steady. The instructions did not have any suggestions or methods to make it easier, and as a new user of a canister filter, I would have liked to have had that.
I'll have to make some adjustments with the tubes but that's a minor inconvenience. This filter is definitely worth the money, you shouldn't be disappointed.
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From the manufacturer
Fluval Canister Filter, FX6 Filter (400 Gal)
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.
- Multi-stage filter pumps out an astounding 925 gallons (3500 L) of water per hour
- Smart Pump – advanced microchip technology continuously monitors and optimizes pump performance
- Self-starting – just add water, plug in and Smart Pump will take over. Trapped air auto-evacuated every 12 hours to ensure maximum efficiency
- Easy water changes eliminate need to lift heavy buckets. Simply attach hosing to output (Kit sold separately) and Smart Pump does the rest
- Removable, stackable media baskets eliminate water bypass and hold a total of 1.5 gallons (5.9 L) of media
Features:
- All filter media included – mechanical, chemical and biological
- Aqua-Stop valves with leak-proof Click-Fit attachment system
- Valves positioned at convenient 45-degree angle for easy installation and rotation
- Anti-clog, telescopic strainer ensures continuous water flow
- Multi-Directional Output nozzles can be fully adjusted to create customized water flows
- Purge Valve with drain hose for easy maintenance and flushing of canister
- Rubberized feet help ensure quiet operation
- 21″ tall design – easily fits under most aquariums
- For use in freshwater and saltwater aquariums
Compare with similar items
This Item  Fluval FX6 High Performance Aquarium Filter, Canister Filter for Aquariums up to 400 Gal. |  |  |  |  |  | |
| Price | $366.95 | $279.00 | $288.89 | $182.96 | $129.98 | $52.75 |
| Delivery | Get it as soon as Tuesday, May 7 | Get it as soon as Tuesday, May 7 | — | Get it as soon as Tuesday, May 7 | Get it as soon as Tuesday, May 7 | Get it as soon as Tuesday, May 7 |
| Customer Ratings | ||||||
| Suction power | ||||||
| Easy to clean | ||||||
| Noise level | ||||||
| Sold By | Amazon.com | OneStopFishShop | Pro.Products.LLC | Pro.Products.LLC | CNZ Lighting | Amazon.com |
Reviews with images
Upgraded from a Sunsun 304b
I had a Sunsun 304b for 3 years and it was SO loud. Finally decided to upgrade and I'm so impressed. The tubes were easier to manipulate, its very clearly marked for out and in and I love how quiet it is!I will say that I almost didn't purchase it after looking at the dimensions. I think they are incorrect. Added the second picture to show that it fits under my 75 gallon setup. I did see another review that showed rubber/cork pads to help with vibration (that was a huge issue with my Sunsun), so I added them under the feet of this new filter.
Top reviews from the United States
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Top reviews from other countries
Sp
Works incredibly well, maintenance is a breeze
Reviewed in Canada on March 7, 2024Size: FX4Verified Purchase
Rafael ugarte
Es un excelente filtro
Reviewed in Mexico on January 30, 2024Size: FX6Verified Purchase
Steve K
Amazing filter, I will always go for this every time.
Reviewed in Canada on May 31, 2021Size: FX6Verified Purchase
Vicky
Pepino de filtro con un nivel de ruido casi inapreciable.
Reviewed in Spain on March 19, 2023Size: FX4Verified Purchase
Danny
Beest van een filter
Reviewed in the Netherlands on December 19, 2021Size: FX4Verified Purchase
