Best Nano Aquariums for Your Desktop & Office Reviewed
Do you love fishes? Have you made your mind to own a nano aquarium for your desktop and office?
Well, we feel you!
A nano aquarium is a very small fish tank. It has all the functions of a normal sized aquarium tank, but simply adds a more minimalist style to the decor. If you are going to buy a nano aquarium, then you will have to know which will be most convenient.
In here, we will have a closer look at various aspects of nano aquariums. Further, we will also review the best nano aquariums that are available with us.
My Pick - The nano aquarium you choose will depend upon your preferences and the kind of features you are looking for in a fish tank. However, I would suggest you consider any one of the Fluval Models.

First Things First, What is a Nano Aquarium?
Now, there is no specific size for a nano aquarium; it is simply smaller than the usual aquariums available.
Usually, a nano reef tank has the capacity to hold about 30 gallons of water, while a nano saltwater aquarium holds 15 gallons of water and this is because the normal size of these particular aquariums is quite large.
However, many consider tabletop aquariums as well as small saltwater fish tanks to be nano aquariums.
Benefits
Drawbacks
Are Nano Aquariums Ideal For You?
Nano aquariums are ideal for those who wish to keep fish but do not want to undertake the hassle of maintaining a large tank. This, however, does not mean that nano aquariums are only for amateurs because even they must be extra careful when it comes to handling such a tank, as one small error might cause the entire system to fail.
That said, here we have shortlisted the best nano aquariums for you to make the right decision.
Best Nano Aquariums
1
Fluval Flex
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Designed to keep fish in freshwater, this nano aquarium has an all-in-one form factor which allows it to fit in any space. There are two sizes in which the aquarium is available: 9 gallons and 15 gallons.
The aquarium is made of high clarity curved glass and has a triple-layered filtration system. The filtration system has a foam filter to trap any unwanted particles like debris, excess amount of fish food or even bits of algae.
The second layer of filtration comes from an activated carbon pouch which removes organic materials dissolved in the water. Finally, there is a section for biofiltration.
This layer gets rid of ammonia and nitrites which are extremely harmful and can cause severe stress in fish, leading to several diseases.
There is a water pump fitted inside the tank. This water pump regulates the water and passes it through the layers of filtration.
The aquarium also has internal LED lighting with lights of different colours. These lights and their timings can be controlled with a Flexpad remote control.
Pros
Cons
2
Marineland Aquarium Kit
This nano aquarium has a capacity of 3 gallons. It weighs 10.5 pounds. There is also a 5 gallons version available which weighs 12 pounds. The bigger one, in spite of having greater capacity, does not really take up too much space and hence is actually a better choice.
The aquarium is made of curved glass and has LED lights hanging over it. The lighting system has a white light setting and a blue light setting. The white light is for daytime to enhance natural light, while the blue light is for nights.
You can slide back the canopy cover to feed the fish or clean the tank. But there is a three-stage filtration system in place that cleans the water quite thoroughly. There is a filter cartridge that eliminates debris. Also check out -
The cartridge has activated carbon and its molded ribbed back increases the contact between water and carbon. This gets rid of chemical impurities and odours.
There is also a bio-foam that is created to reduce organic particles and cultivate bacteria to destroy the harmful nitrites and ammonia components.
If the devices like the filter pump and water pumps make your tank look tacky, this one will help you find a solution. The nano fish tank comes with a three side open frame.
Behind the fourth side is the filtration and water pumping process done. The fish tank does not have any devices to entice the beauty of a natural habitat. The LED lights have different modes with both shiny and soft glows for day and night. The lights are hung from above with railing. This fish tank can hold up to 5 gallons of water and allows space enough for decorations, plants or gravel too.
Pros
Cons
3
Fluval Aquarium Kit, 5 Gallon
If you need more space, then this is a good option. Measuring 17.2 X 10.6 X 6.3 inches, this nano aquarium is long and narrow and the LED lighting system that hangs over it has 37 lights.
The tank is made of etched glass which makes it extremely modern and elegant.
The pump is placed in a chamber along with the filtration system at one end of the tank. The pump is very powerful and it can be adjusted. If you want to fit a heater, then there is enough space for that above the pump.
It is the cheapest among the nano fish tanks available online. But the product durability is surprisingly more than many expensive counter parts.
The tank is equipped with 37 LED light system. The frame is made of etched glass fitted above the aluminium trim. The chances of any metal corrosion are none making this the best sea water nano fish tank too.
The tank can hold up to 5 gallons of water. The filtration and pumping devices are almost hidden and do not lie inside the tank making it less tacky too.
Pros
Cons
4
JBJ Nano Cube DX Aquarium
Pros
Cons
5
Fluval Edge Aquarium with LED Light
There are two versions of this aquarium; the 6 gallons one weighs 23.3 pounds while the 12 gallons one weighs 34.5 pounds.
Both these aquariums have the same filtration system and some customers have found that this filtration is not enough for the larger tank.
Therefore, the smaller tank is better and the filtration is very efficient with Cycleguard, Nutrafin Cycle, and Nutrafin Aquaplus water treatment features. With this system, you will only need to clean the aquarium once in every three months.
The 6 gallons tank also has 21 LED lights (18 white lights and 3 blue lights).
The design of the aquarium is very modern and the glass on all sides make it appear quite weightless. The 6 gallons aquarium is available in black, white bad silver while the 12 gallons one is available only in black and white.
Pros
Cons
6
Marina Aquarium Kit
The nano aquarium version of this measures 16 X 8.5 X 10.5 inches and can be fitted with the Marina Slip S10 clip-on filter and LED lights which are available in the kit.
The kit also has a guide for setup and aquarium maintenance along with a net. There are other things like fish food samples, and Aquaplus Conditioner available in the kit.
Because this tank is for beginners, it needs to be taken care of and you will have to buy all supplements and other materials once they run out.
If you decide to put different kinds of fish or aquatic plants, then you might need to fit in a heater or get different lights or you might even want to upgrade to the 20-gallon version of the tank.
Pros
Cons
7
Vepotek Nano Kit
Those who love nano aquariums know that these aquariums can look really good and aesthetic with the right accessories and lighting.
The Vepotek Nano Kit comes with several accessories and fittings for the aquarium. It has a filter and a lighting system with 39 LED lights of four different colours and it also has an internal timer for the lights.
The exterior is made of glass which adds to the aesthetics of the aquarium.Acrylic plastic might be a safer choice but it gets scratched easily and the marks don't fade.
Therefore from that point of view, glass is better and it looks great too.It is one of the safest yet with most built in features nano fish tank. The tank is made with temper glass for highest endurance of frame. The built in timer and temperature sensor do not allow the water to get discomforting consistently.
The constant use of the aquarium filter pump is highly energy saving as compared to others. There are 36 LED lights with 4 different colors for both day and night times. Just buy the tank and put some water and fish in it and you are done worrying about anything else.
Pros
Cons
8
Tetra Cube Aquarium Kit, 3 gallons
Made of styrene plastic, the sides of this aquarium measure about 10 inches and there is a pedestal that elevates it. There is a clear canopy covering and it has an opening through which you can give fish food without having to take off the cover.
When you purchase the kit, you also get to sign up for TetraCare online and phone support which can be of help in case of any technical difficulties.
The filter has an air pump and there is also a LED light. All you will need to do is plug in the power adapter and the tank will start functioning. It is also quite light and can be carried if necessary.
Pros
Cons
9
Marineland Aquarium Kit, 3 gallons
This looks like a normal aquarium but it has a black curved band covering the top, one side and the bottom completely. The covering on the top which is a part of the band like cover can be slid back form an opening while the bottom part of the cover is like a pedestal for the tank.
The side which has the covering is fitted with a filtration system which filters debris, eliminates unwanted particles and odours with chemicals and generates cultivation of bacteria to get rid of nitrites and ammonia.
The rate of water flowing through the air pump can be regulated and adjusted and the LED lighting system of this aquarium has both white and blue lights, for daytime and nights, respectively.
A nano tank serves the purpose of a good ecosystem in compact way. This one is the most stylish in doing the perfect job. This nano fish tank comes with brilliant rail light which has two modes – Daylight and Moon.
The tank is built to hold up to 3 gallons of water. It is perfect for the Betta fish. There is an additional 3 step filtration system that takes away the concern of filtering the water.
This little tank will fit right in the corner of your living room and enhance its beauty.
Pros
Cons
10
Fluval Spec III Aquarium Kit, 2.6 gallons
With dimensions of 8.7 X 10.8 X 11.8 inches, this nano aquarium is great for desktops. The design is very stylish, using the scratch-resistant etched glass instead of plastic.
The lighting system of 31 LED lights hang over the top of the tank and there is also a circulation pump fitted inside the tank which has an adjustable nozzle.
The filter has 3 different features: porous foam, activated carbon, and BioMax bio rings, which keep the water clean for a very long time.
Pros
Cons