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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 3,250 ratings

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Black
9 Gal.

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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

Frequently bought together

$125.99
Get it Apr 4 - 8
In Stock
Ships from and sold by SaltwaterAquarium.
+
$22.80
Get it as soon as Wednesday, Apr 3
In Stock
Ships from and sold by Amazon.com.
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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 3,250 ratings

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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

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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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Price-11% $125.99
List:$141.99
$139.99$138.99$289.99$84.99-9% $99.95
List:$109.99
Delivery
Get it Apr 4 - 8
Get it as soon as Thursday, Apr 4
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Customer Ratings
Suction power
4.1
4.6
4.2
4.3
Value for money
4.1
3.3
3.3
Sold By
SaltwaterAquarium
LANDEN
TAG Supplies
Pro.Products.LLC
sunnyand warm
Reptilian Arts
tank volume
9 gallons
10 gallons
8 gallons
12 gallons
10 gallons
2.6 gallons
material
Glass
Glass
Glass
Glass
Glass
Glass
shape
Square
Rectangular
Rectangular
Edge
Rectangular
Rectangular
weight
5.04 kilograms
35.5 pounds
17 kilograms
style
Contemporary
Simple Minimalist
Contemporary
Modern
Modern
Tropical

Customer reviews

4.4 out of 5 stars
4.4 out of 5
3,250 global ratings

Customers say

Customers like the appearance and quality of the aquarium. They mention that it's a really nice looking tank, with a contemporary design. They are also happy with ease of setup, and performance. However, some customers dislike the remote. Opinions are mixed on lighting, filter, and size.

AI-generated from the text of customer reviews

204 customers mention198 positive6 negative

Customers are satisfied with the appearance of the tank. They mention it's a really nice looking tank, and the overall impression is of premium quality. They are also happy with the design and Contemporary Look in their home. The tank is visually captivating, and modern in design. It's also very nice for an office as you can't see the heater or filter system. Customers also appreciate the night time setting is pretty and will make glofish products glow nicely. They like that the rear compartment has the woven grill pattern like the lip of the main tank.

"...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

"...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

"...Everything worked from the getgo. Super easy set up, and it's beautiful. I'll never purchase any other tank unless I go bigger...." Read more

"...Fish Tank arrived in great shape and looks even better." Read more

182 customers mention144 positive38 negative

Customers like the quality of the aquarium. They say it's an amazing tank, wonderful aquarium, and easy to set up with live plants and fish. Customers also mention that the tank and filter look high quality. Overall, customers find the aquarium to be a great product and a functional home for their aquatic friends.

"...I was pleasantly surprised by the technological advances (and reduced costs) offered by this aquarium, since I was last active in the hobby...." Read more

"...both beginners and experienced aquarists, offering a stylish and functional home for my aquatic friends...." 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

"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

60 customers mention60 positive0 negative

Customers find the ease of setup and use of the vivarium to be amazing. They say it's fun to set up, and easy to maintain. Customers also appreciate the hidden filtration, heater, and pump. They mention that the remote is easy to use and the tank itself is amazing for the price point. They also say that they were able to get professional results with very little effort.

"...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

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

"...Everything worked from the getgo. Super easy set up, and it's beautiful. I'll never purchase any other tank unless I go bigger...." 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

60 customers mention54 positive6 negative

Customers are satisfied with the performance of the vivarium. They mention that the lights work as advertised, the filtration system works well, and the remote works perfectly. Overall, most are happy with their purchase and recommend it to others.

"...Bottom line, I highly recommend this tank. Everything worked from the getgo. Super easy set up, and it's beautiful...." Read more

"I have had this set up for a little over 10 weeks. No problems, I like the design...." Read more

"...The lights and remote work perfectly. I will be adding a light timer though...." Read more

"Arrived early and works great!!!!" Read more

108 customers mention65 positive43 negative

Customers are mixed about the lighting of the vivarium. Some mention that the lighting is great, and is great for artificial plants. It has an upgraded lighting system, and the ability to have white light and a color on at the same time. Others say that the light can't be operated at all without the remote, and has very limited settings.

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

"...The light also is very limited- no 8 or 12 or 24 hour cycle settings, You can blend the white and RGB so it is 'mostly' white with one color..." Read more

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

"...Some of the light features are very fun like the storm one.The BAD:-..." Read more

79 customers mention34 positive45 negative

Customers are mixed about the filter of the vivarium. Some mention that the built in filter is a plus, and the internal three-stage filter is an added plus. They also love the option to add filters in the back, and that the filteration is hidden. However, others say that the filters are not strong enough, the glass looks fragile, and it looks like the filter media is of poor quality. Some customers also mention that there is no way to turn the filter down.

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

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

"...It's super delicate, so hopefully it doesn't break. If it does, I'll get the same one.Bottom line, I highly recommend this tank...." Read more

"...it is a nice aquarium as it has a nice contour and the filteration is hidden but for me and my fish, I find a couple of flaws...." Read more

78 customers mention54 positive24 negative

Customers are mixed about the size of the vivarium. Some mention that it's perfect to sit on the counter in the kitchen, and fits perfectly in their small apartment. However, others say that it is too small, the floor looks much smaller than it really is, and takes away valuable space that could be utilized by your pets.

"...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

"...I added a heater as it doesn't come with one. The heater fits nicely in the filter compartment that holds the pump...." Read more

"...The light that is installed in it is very short and narrow so does not fully light the living area...." Read more

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

64 customers mention10 positive54 negative

Customers are dissatisfied with the remote of the vivarium. They mention that it barely works, malfunctions, and is hit or miss. Some say that the remote is dinky and cheap.

"...The remote has been having IR or battery issues. I will be having to go out and pick up a new battery...." Read more

"...Unfortunately I can't set light right now due to remote doesn't work. I would give 5 stars if unboxed remote did work...." Read more

"...The remote only works if you use it directly pointed at the sensor...." Read more

"...their job but the light only turns on with the remote and the remote barely works. It worked a little bit yesterday and isn't working at all today...." Read more

Sleek looking for fishtanks
5 Stars
Sleek looking for fishtanks
I love the sleek design and the hidden filter and heater. I did buy 3D printed outputs to have a slower flow and 2 long bars to hold up the lids while changing water because otherwise the lid sits flat and seems a big risk to break when doing water changes. The lighting options are neat though I usually keep at white. There is a "thunderstorm" option that strobes the lights which seems terrible, so photosensitive users beware to not hit that button in the remote! But I'm hooked and want to buy 2 more!
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Top reviews from the United States

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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Customer image
31 people found this helpful
Report
Reviewed in the United States on March 24, 2024
Color: WhiteSize: 9 Gal.Verified Purchase
Customer image
5.0 out of 5 stars Sleek looking for fishtanks
Reviewed in the United States on March 24, 2024
I love the sleek design and the hidden filter and heater. I did buy 3D printed outputs to have a slower flow and 2 long bars to hold up the lids while changing water because otherwise the lid sits flat and seems a big risk to break when doing water changes. The lighting options are neat though I usually keep at white. There is a "thunderstorm" option that strobes the lights which seems terrible, so photosensitive users beware to not hit that button in the remote! But I'm hooked and want to buy 2 more!
Images in this review
Customer image Customer image
Customer imageCustomer image
Reviewed in the United States on February 18, 2024
Color: BlackSize: 15 Gal.Verified Purchase
Reviewed in the United States on September 22, 2023
Color: BlackSize: 15 Gal.Verified Purchase
5 people found this helpful
Report
Reviewed in the United States on September 14, 2020
Color: BlackSize: 15 Gal.Verified Purchase
14 people found this helpful
Report
Reviewed in the United States on March 5, 2024
Color: BlackSize: 9 Gal.Verified Purchase

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