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Fluval Flex 9 Aquarium Kit - Fish Tank for Fish & Plants - Comes with LED Lights, Filtration System & More - 36" x 18" x 18" - 34 L, 9 Gal. - Black

4.4 4.4 out of 5 stars 3,235 ratings

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Black
9 Gal.

About this item

  • Stylish Fluval Aquarium: Contemporary design with curved front and honeycomb wrap that conceals water line and filter compartment sides
  • Customizable LED Aquarium Lights: Fully adjustable 7500K White + RGB LEDs for endless color blends and plant growth support; FLEXPad remote for special effects like lightning bolts and fading cloud cover
  • Powerful Fluval Fish Tank Filtration: 3-stage filtration with oversized mechanical, chemical, and biological media for superior water quality
  • Perfect Pet Supplies: Small fish tank enclosure with multi-directional dual outputs for customized water flow; easy feed top cover opening
  • Innovation for Fish Keepers: Fluval innovates to foster a sustainable future where aquatic life and humankind can thrive in harmony

Customer ratings by feature

Easy to clean
4.3 4.3
Value for money
4.1 4.1
Brightness
4.1 4.1
Suction power
4.1 4.1

Compare with similar items

This Item
Fluval Flex 9 Aquarium Kit - Fish Tank for Fish & Plants - Comes with LED Lights, Filtration System & More - 36" x 18" x 18" - 34 L, 9 Gal. - Black
Fluval Flex 9 Aquarium Kit - Fish Tank for Fish & Plants - Comes with LED Lights, Filtration System & More - 36" x 18" x 18" - 34 L, 9 Gal. - Black
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Details
Added to Cart
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Added to Cart
Price$139.99$138.99$99.99-9% $99.99
List:$109.99
-18% $102.76
List:$125.99
Delivery
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Customer Ratings
Value for money
4.1
3.2
3.4
4.0
Suction power
4.1
4.6
4.0
4.3
Easy to assemble
4.8
4.0
4.4
Noise level
4.0
4.2
4.0
Sold By
LANDEN
TAG Supplies
Eletree
Amazon.com
Amazon.com
tank volume
9 gallons
10 gallons
8 gallons
2.6 gallons
material
Glass
Glass
Glass
Glass
Glass
Glass
shape
Square
Rectangular
Rectangular
Rectangular
Rectangular
Rectangular
weight
5.04 kilograms
35.5 pounds
7.87 kilograms
style
Contemporary
Simple Minimalist
Contemporary
Simple
Tropical
10 gallon

Product guides and documents

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 13.19 x 13.78 x 12.8 inches; 11.1 Pounds
  • Item model number ‏ : ‎ 15004
  • Date First Available ‏ : ‎ November 18, 2016
  • Manufacturer ‏ : ‎ Rolf C. Hagen (USA) Corp.
  • ASIN ‏ : ‎ B01MRIQW7K
  • Customer Reviews:
    4.4 4.4 out of 5 stars 3,235 ratings

Looking for specific info?

Product Description

If you're looking for a fish tank that combines style and functionality, the Fluval Flex 9 Aquarium Kit is the perfect choice. This Fluval aquarium is designed to enhance the colors of your pet fish with its fully adjustable 7500K LED lamp that supports plant growth and provides endless color blends. The LED aquarium light is fully customizable with White + RGB LEDs and is controlled via a FLEXPad remote that also offers fun special effects like fading cloud cover and lightning bolts.But the Fluval Flex 9 Aquarium Kit is more than just a beautiful fish tank—it also boasts a powerful 3-stage filtration that includes an oversized mechanical (foam), chemical (carbon), and biological (Biomax) media to provide superior water quality for your pet fish. The multi-directional dual outputs of this Fluval tank allow for customized water flow, and the hidden rear filter compartment and easy feed top cover opening make maintenance a breeze.

With its stylish honeycomb wrap that conceals the water line and the sides of the rear compartment, the Fluval Flex 9 Aquarium Kit is a modern aquarium that will look great in any home. Suitable for freshwater use, this Fluval fish tank is the perfect pet supply for those who want to care for their pets in the best way possible.

Fluval is on a mission to bring inspiration and innovation to fish keepers around the world. Through ground-breaking product technologies, educational initiatives, conservation efforts, and strong social media engagement, our brand speaks to all generations of hobbyists to foster a sustainable future where aquatic life and humankind can thrive in harmony.

Important information

Directions

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Customer reviews

4.4 out of 5 stars
4.4 out of 5
3,235 global ratings

Customers say

Customers are happy with the value, ease of setup, appearance, noise, and quality of the vivarium. They mention that the price is well worth it, the filter media is cheap, and the tank is instant with very little hassle. They are also satisfied with appearance, quality, and noise. However, some disagree on filter strength, size, and brightness.

AI-generated from the text of customer reviews

246 customers mention177 positive69 negative

Customers are generally happy with the quality of the tank. They say that the quality is nice, the glass is nice and the black beading on the back wall and the top is amazing. They also say it's a really nice beginner aquarium and that it'd be easy to set up with live plants and fish. Some say the pump is very strong for the small tank and puts out a lot of flow. Overall, most are satisfied with the tank and recommend it to others.

"This tank has a good quality with reasonable price and that's why I love it. Unfortunately I can't set light right now due to remote doesn't work...." Read more

"...of this, I probably wouldn't buy this tank again, although it is a very well-made and good-looking tank and would be excellent as a planted shrimp..." Read more

"...Nothing has ever wow'd me enough or been that crappy to bother. This tank is killer. It has been George's new digs for a couple months...." Read more

"...However, the provided filter media could be of better quality...." Read more

197 customers mention190 positive7 negative

Customers are satisfied with the appearance of the vivarium. They mention that it's a really nice looking tank and the overall impression is of premium quality. They also appreciate the modern design and the night time setting. The hood and integrated filter systems are well-engineered, and the lighting is awesome and unique. The tank is genuinely nice and looks very clean.

"...So very quiet and lots of space for fish. Very nice for my office as you can't see the heater or filter system." Read more

"...an unobstructed view of my fish and plants, creating a visually captivating display. However, the provided filter media could be of better quality...." Read more

"...Super quick and easy set-up, attractive, so quiet that you can't hear it running, and the lighting is really sophisticated-- fun to personalize the..." Read more

"...n't buy this tank again, although it is a very well-made and good-looking tank and would be excellent as a planted shrimp tank or a single betta..." Read more

59 customers mention56 positive3 negative

Customers find the vivarium easy to set up and maintain. They appreciate the hidden filtration, heater, and pump, which makes it easy to maintain. The tank operates via remote, and customers find it easy for the remote to be put on a timer. Overall, customers are satisfied with the ease of setup and maintenance of the tank.

"...Very easy to setup and filter media is cheap and always available. So very quiet and lots of space for fish...." Read more

"...Setting it up was straightforward, and the filtration system is efficient, keeping the water crystal clear...." Read more

"...This aquarium reignited my love for Fluval. Super quick and easy set-up, attractive, so quiet that you can't hear it running, and the lighting is..." Read more

"...It arrived in perfect condition and was very easy to set up. I added a heater as it doesn't come with one...." Read more

56 customers mention44 positive12 negative

Customers like the value of the vivarium. They say it's a great tank for a beginner, the new monthly carbon packs are cost effective, and the filter media is cheap and always available.

"...Very easy to setup and filter media is cheap and always available. So very quiet and lots of space for fish...." Read more

"This tank has a good quality with reasonable price and that's why I love it. Unfortunately I can't set light right now due to remote doesn't work...." Read more

"Cheaper than the store …" Read more

"...I felt that the value was a little steep considering some of the lacking features. It is still way better than a low quality tank.-..." Read more

49 customers mention40 positive9 negative

Customers like the noise level of the vivarium. For example, they mention it's very quiet, and they can't hear it running.

"...Very easy to setup and filter media is cheap and always available. So very quiet and lots of space for fish...." Read more

"...Super quick and easy set-up, attractive, so quiet that you can't hear it running, and the lighting is really sophisticated-- fun to personalize the..." Read more

"Quiet, built in filter system. Replaceable pump. Looks sleek and being able to hide accessories is nice...." Read more

"...The included pump is powerful and quiet...." Read more

111 customers mention69 positive42 negative

Customers are mixed about the filter strength of the vivarium. Some mention that the led light choices and the internal three-stage filter is a plus, with extra room in the hidden filter section for extra floss or even another filter spounge. However, others say that the pump got really slow so the water was barely moving through the filter, the pump clogs easily, and the tank does not come with a filter block.

"...Setting it up was straightforward, and the filtration system is efficient, keeping the water crystal clear...." Read more

"...Yes the water is low. They are fumigating in a week, so I'm letting as much water evaporate as possible to make it easier to move...." Read more

"...I like the additional filter box compartment for adding additional filter media and for the fact that it hides all the equipment...." Read more

"Quiet, built in filter system. Replaceable pump. Looks sleek and being able to hide accessories is nice...." Read more

109 customers mention73 positive36 negative

Customers are mixed about the brightness of the vivarium. Some mention that the lighting is very good for the price, and the contemporary design adds a touch of elegance to any tank. The LEDs themselves are fairly decent, and you can grow plants with low to medium light, making it convenient for tank maintenance. However, others say that the light also is very limited, and went out after couple months. The warranty from the manufacture is a process, and it only turns on with the remote. The light will now turn on by itself, and turning it off with the remot only works.

"...Its sleek and contemporary design, complete with LED lighting, adds a touch of elegance to any room...." Read more

"...so quiet that you can't hear it running, and the lighting is really sophisticated-- fun to personalize the light settings!!..." Read more

"...Also I find the blue lighting color pretty horrible...." Read more

"...Aesthetically, the tank is beautiful. The lighting is great, However I ran into a few issues with it.1...." Read more

83 customers mention57 positive26 negative

Customers are mixed about the size of the vivarium. Some mention that the design is really cool, the front bow and shape actually adds room, and it's perfect for their betta and mystery snails. However, others say that it'd be too small for their Rainbow Chiclids and that the tank holds less than 7 gallons. The space where the filter and the pump is housed is cramped and difficult to clean, and there is a tremendous amount of wasted space.

"...So very quiet and lots of space for fish. Very nice for my office as you can't see the heater or filter system." Read more

"...3. Even though this is a relatively small aquarium, I can see that there might be times that you might want to use additional equipment with it,..." Read more

"...It actually holds less than 7 gallons and once I got my substrate, hardscape and plants in it, there's only a little over 5 gallons of water in it..." Read more

"Perfect for live plants with your fish.Great size for a small space." Read more

I love the looks of this tank, only have one issue
4 Stars
I love the looks of this tank, only have one issue
I really love this tank. It is beautiful, the remote control gives you a lot of choices on lighting, the filter system keeps the tank clean, and the viewing area is amazing. The one issue I have with it, and it is a big one for me, is that the lid won't stay open when you go to clean it. You have to take it off. I have rigged a bungee cord nearby to hold it open, but it took a while to figure this out. This may seem like a little thing, but every time you want to feed the fish (your hands are full of fish food and the cap) or you're adding fish, or whatever the case, you have to fiddle with the lid trying to fall off.SoPros: 1 beautiful, 2 keeps itself clean, 3 nice viewing area to see the fish, 4 remote control lighting in many different colorsCons: Top won't stay open on its ownNote: The picture is just to show how easy it is to see the fish. The things in the tank (fish, plants, rocks, and ornaments were my additions)
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Top reviews from the United States

Reviewed in the United States on November 16, 2023
Color: BlackSize: 15 Gal.Verified Purchase
Customer image
5.0 out of 5 stars Perfect Tank. Quiet and roomy!
Reviewed in the United States on November 16, 2023
My tetras have never been happier. Very easy to setup and filter media is cheap and always available. So very quiet and lots of space for fish. Very nice for my office as you can't see the heater or filter system.
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4 people found this helpful
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Reviewed in the United States on September 22, 2023
Color: BlackSize: 15 Gal.Verified Purchase
5 people found this helpful
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Reviewed in the United States on February 18, 2024
Color: BlackSize: 15 Gal.Verified Purchase
Reviewed in the United States on April 15, 2023
Color: BlackSize: 15 Gal.Verified Purchase
Customer image
5.0 out of 5 stars Fantastic!! I Love This Aquarium!
Reviewed in the United States on April 15, 2023
For many years, I kept saltwater, brackish, and freshwater aquariums on a pretty large scale. I took a break from the hobby, and recently found myself ready to get back in the saddle, though on a smaller scale. I chose this aquarium for the Fluval name-- I had great prior experiences with Fluval filtration (loved my Fx4!!)

This aquarium reignited my love for Fluval. Super quick and easy set-up, attractive, so quiet that you can't hear it running, and the lighting is really sophisticated-- fun to personalize the light settings!! I was pleasantly surprised by the technological advances (and reduced costs) offered by this aquarium, since I was last active in the hobby.

Overall, I give this 5+ stars. I plan on buying this set-up again for my parents (and setting up another one for myself!). I do, though, have some suggestions to Fluval, as an experienced aquarist, as to improving this already great aquarium--

1. The food slot in the front of the tank lid would benefit from having a sliding or hinged door. My cats sit on top of the tank and were easily able to get their paws in, until I installed a mesh cover.

2. It would be nice to have the top hinged, so it would be supported whenever doing water changes.

3. Even though this is a relatively small aquarium, I can see that there might be times that you might want to use additional equipment with it, such as a chiller, sump, or UV sterilizer. However, the current lid design, head space, and design of the partitions between the back chambers doesn't support this. It would be great if those areas could be re-designed to provide flexibility to use additional equipment, as needed.

Overall, though, I adore this aquarium!! Already planning my next Fluval Fex 15 gallon tank. Stay tuned!
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30 people found this helpful
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Reviewed in the United States on July 14, 2022
Color: BlackSize: 9 Gal.Verified Purchase
42 people found this helpful
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Reviewed in the United States on February 18, 2023
Color: BlackSize: 9 Gal.Verified Purchase
23 people found this helpful
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Reviewed in the United States on February 13, 2024
Color: BlackSize: 9 Gal.Verified Purchase
2 people found this helpful
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Top reviews from other countries

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José m.
5.0 out of 5 stars Buen producto
Reviewed in Mexico on March 14, 2024
Color: BlackSize: 9 Gal.Verified Purchase
Isela
5.0 out of 5 stars Muy linda
Reviewed in Mexico on February 10, 2024
Color: WhiteSize: 9 Gal.Verified Purchase
Daniela Heil
5.0 out of 5 stars Gerne wieder
Reviewed in Germany on March 4, 2024
Color: WhiteSize: 9 Gal.Verified Purchase
guylaine r.
5.0 out of 5 stars Très bon produit
Reviewed in France on February 14, 2024
Color: WhiteSize: 9 Gal.Verified Purchase
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guylaine r.
5.0 out of 5 stars Très bon produit
Reviewed in France on February 14, 2024
Superbe rendu
Je suis comptente de mon achat
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Bullen
5.0 out of 5 stars Glöm inte dopp närmare.
Reviewed in Sweden on February 10, 2024
Color: BlackSize: 9 Gal.Verified Purchase