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10 Best Nano Reef Tank of 2021 [Reviewed & Buyer’s Guide]

Fish and landscape in the aquarium

Disclaimer | This article may contain affiliate links, this means that at no cost to you, we may receive a small commission for qualifying purchases.

Want to relax after a long day at work looking at the corals and colorful fish? How about getting a nano reef tank for a cozy corner of your room? 

Reef tanks are fascinating if you love the beauty and mystery that marine life offers. These tanks have become quite popular and affordable over the last decade. They are great to house both freshwater and saltwater color fish. However, when it comes to choosing the best one, it is not an easy task. 

The market is filled with thousands of options, and deciding on the perfect one might seem like a challenge. So, in order to help you, we have formulated this guide with a detailed description of the top ten nano reef tanks. You will also find a buyer’s guide attached at the end of the guide.

So, without any more delay, let’s check them out!  

Best Nano Reef Tank 

Document
IMAGEPRODUCTDETAILS
Our Top PickOur Top Pickhstcstbl-table__imageCoralife LED Biocube 100530106
  • Available in black color
  • Square-shaped tank
  • Includes built-in LED lights
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hstcstbl-table__imageMarineLand Contour ML90610 Glass Aquarium Kit
  • Energy-efficient option
  • Weighs 8 pounds
  • Square-shaped tank
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hstcstbl-table__imageGloFish NV33823 Aquarium Kit Fish Tank
  • Includes 3-stage filtration system
  • LED lighting
  • Available in multiple sizes
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hstcstbl-table__imageFluval Sea Evo V 10531A1 Saltwater Fish Tank
  • Available in multiple sizes
  • Rectangular in shape
  • Includes aluminum casing
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hstcstbl-table__imageTetra ColorFusion NV33822
  • Rectangular shaped tank
  • Includes color fusion LEDs
  • 20-gallon capacity
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hstcstbl-table__imageFREESEA 1.2 Gallon Betta Aquarium Fish Tank
  • Available in both black and white color
  • Square-shaped tank
  • Included LED lights
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hstcstbl-table__imageHygger Horizon 8 Gallon LED Glass Aquarium Kit
  • Includes 3D décor
  • Comes with LED lights
  • Broad view curved shape tank
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hstcstbl-table__imagebiOrb 45653 Halo Aquarium
  • Available in multiple sizes
  • Unique round shape
  • Made of acrylic material
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hstcstbl-table__imageHygger Small Betta Fish Tank with LED Lighting
  • 4-gallon capacity
  • Made of plastic and glass
  • Includes submersible water pump
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hstcstbl-table__imageBioCube Coralife Size 32 LED Aquarium
  • Glass construction
  • Includes 32 LEDs
  • Comes with an upgraded stand
VIEW LATEST PRICE →

Coral Reef and Tropical Fish in Sunlight. Singapore aquarium

  1. Coralife LED Biocube 100530106

Are you new to reef tanks and want to experiment with an incredible mid-sized variant? Then the Coralife LED Biocube 100530106 could be the best bet for you. With stellar looks and excellent performance, it has managed to impress many users who have given it a try. Let’s take a dive and see what this product is offering.

Coralife Fish Tank LED BioCube Aquarium Starter Kits, Size...
  • Programmable hinge top hood with 24-hour timer loaded with...
  • Features 30-minute gradual sunrise/sunset and...
  • Integrate backwall filtration chambers to hold biological,...
  • Backwall chamber includes submersible pump, dual intakes and...

Why Did We Like It?

The first thing that we noticed about this item is the beautiful square-shaped tank that is made of glass and curved at the corners. This gives you a better view of the fish in the tank and enables you to notice if there’s some abnormality immediately. 

The back panel is also made of clear glass, which makes it convenient to add a refugium. Another thing to note is the glass quality. Although it is impossible to ensure zero scratches on the glass, any sort of wear and tear will be at a minimum with this product.

Moreover, to amplify the beauty and increase the tank’s visibility, there is an in-built hood with an LED light installed in it. It is perfect for corals and mostly all other types of reed species as it comes with actinic moonlight and a timer. The customizable filters allow you to raise a range of SPS corals too. 

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What Could’ve Been Better?

There is hardly any complaint that we have with how well this item performs. However, we noticed that it was a little loud. The noise is specifically audible during the night when the room falls silent. We recommend that you do not keep the tank in your bedroom. 

Pros
  • Attractive design
  • See-through glass on all sides
  • Suitable for a range of corals
  • Easy to clean
Cons
  • Makes a little noise
  1. MarineLand Contour ML90610 Glass Aquarium Kit

MarineLand is a popular name in the market, and their product, the Contour ML90610 Glass Aquarium Kit is an excellent option when it comes to fish keeping. It is highly efficient in creating the most suitable environment for marine life to thrive. With this device, you will face no trouble feeding the fishes and raising them becomes super convenient.

Sale
Marineland Contour 3 aquarium Kit 3 Gallons, Rounded Glass...
  • SLEEK DESIGN: Rounded corners and clear glass canopy allow...
  • DAYLIGHT/MOONLIGHT SETTINGS: Bright white LEDs create a...
  • EASY ACCESS: Hinged LED rail light and sliding glass canopy.
  • DIMENSIONS: The Marineland Contour 3 aquarium measures 9. 5...

Why Did We Like It?

The LED light in the tank is quite notable as it adds to its beauty and highlights the marine life in it. However, even if you keep the light switched on throughout the day, you need not worry about wasting electricity. The LEDs are highly energy-efficient and thus are pretty cost-effective. They are mounted in such a manner that the light gets distributed equally in all corners of the tank. 

Additionally, this tank is easy to use. Unlike many tanks where you could face difficulty removing the canopy to feed the fishes, this one is relatively simpler. The glass canopy slides smoothly over to the rear end of the tank through which you can feed the fishes and check the water condition. 

Furthermore, maintaining the best water quality inside the tank is crucial to ensure a thriving marine life. And this product helps you do that in the most efficient fashion. The adjustable filter pump in this device adds to its overall convenience. 

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What Could’ve Been Better?

After using it for a few months, there’s one downside to this product that we noticed. Cleaning seems to be quite a challenging task. The placement of the filter motor is such that it gets a little difficult to access. So, we suggest that you keep this in mind on your cleaning day and reserve some extra time for this. 

Pros
  • Premium-quality performance
  • Stylish design
  • Easy to use
  • Helps to maintain good water quality
Cons
  • Cleaning is time-consuming
  1. GloFish NV33823 Aquarium Kit Fish Tank

Looking for a colorful and lively reef tank to enhance the stellar décor in your house? Look no further; you are at the right place! The GloFish NV33823 Aquarium Kit Fish Tank is a great choice if you like having a creative and fun aquarium in your room.

GloFish 20 Gallon Aquarium Kit with LED Lights, Decor Heater...
  • The blue LED light completely transforms your aquarium
  • GloFish and fluorescent décor create a colorful, neon...
  • GloFish Glass Aquariums are made in the USA and are built to...
  • The Tetra GloFish Kit includes: one 20 Gallon Glass...

Why Did We Like It?

One thing we can say is that this tank is an excellent choice for hobbyists, beginners, and professionals alike. Simply put, it is so easy to use that irrespective of your level of expertise in working with aquariums, you will not face any difficulty in maintaining this one. 

Moreover, the LEDs that are attached to the tank are pretty versatile and come with customizable functions. Depending on the time of the day, you can either shift it to white or yellow light, based on your preference. 

Plus, the filtration system of this tank is quite noteworthy. It is not a single-stage filter. Instead, it is a 3-stage filtration process that provides the most potent combination of biological, mechanical, and chemical filtration for the aquatic lives in the tank. 

51yKUvLbG8L. SL500

What Could’ve Been Better?

The performance of this product is undoubtedly top-notch. However, there’s one thing that calls for improvement. The connecting plug is a little short, and therefore you need to put your tank very close to the power source. Or you can make use of an extension cord to tackle the problem. 

Pros
  • Easy for everyone to use
  • LEDs add beauty to the tank
  • Water filtration is incredible
  • Simple cleaning process
Cons
  • Cord is too short
  1. Fluval Sea Evo V 10531A1 Saltwater Fish Tank

Next up on our list, we have the Fluval Sea Evo V 10531A1 Saltwater Fish Tank, which is best known for its sleek and modern design. The aluminum casing adds to the elegance of the tank and turns it into a décor item for your living space.

Fluval Sea Evo V Saltwater Fish Tank Aquarium Kit, Black, 5...
  • 5 gallon glass aquarium for saltwater fish
  • Stylish honeycomb design conceals rear aquarium...
  • Powerful 3 stage filtration with oversized mechanical,...
  • Multi-functional canopy with easy feed door

Why Did We Like It?

When it comes to looks, this one will surely grab your attention. The manufacturers have spent a good deal of time and effort in perfecting the design. And now, this stands as one of the most attractive choices under the 20-gallon category. It is mainly the honeycomb design pattern that makes it stand out amongst its contemporaries. 

Additionally, if you are thinking of raising corals, this tank can be an ideal fit. The hooded LED lights are highly efficient and suitable to help the corals thrive. The actinic moonlight setting further helps in the process. 

On top of that, the kit is quite well stocked and adjustable if you want to add other products like protein skimmers and water heaters to help the aquatic life survive better. You do not have to buy any tools or instruments separately to ensure this. 

What Could’ve Been Better?

Once again, we did not find any significant downside to this. However, after a few weeks of using it, we noticed that the rear end’s filter compartment is a little small. And in case you have big hands, you might find it a little hard to reach. To avoid minor injuries, we suggest that you wear gloves whenever maintenance is required.

Pros
  • Unique honeycomb design
  • Well stocked kit
  • Can be used with other aquarium products
  • Great for raising corals
Cons
  • Filtration compartment is relatively tiny
  1. Tetra ColorFusion NV33822

If you are looking for a vibrant and well-performing aquarium that can bring the décor of the room a notch higher, then you are at the right place. The Tetra ColorFusion NV33822 is an excellent choice for hobbyists and professionals alike. It is packed with essential features that will help the corals and fish survive the best. 

Tetra ColorFusion Aquarium 20 Gallon Fish Tank Kit, Includes...
  • Let the LED light transform your aquarium with each color...
  • The anemones sway with your filter current and give your...
  • Tetra plants come to life under the glow of Color Fusion LED
  • The Tetra ColorFusion Kit includes: one 20 Glass gallon...

Why Did We Like It?

We could not help but notice how well the manufacturers have designed this item. The 20-gallon reef tank is ideal for those who want an aquarium to accentuate the décor but does not want it to take up much space. This size is perfect for accommodating multiple fish without occupying too much space in the room. 

Moving on, setting up this reef tank is a no-brainer. The user manual is extremely well laid out and takes you to step by step through the process of setting it up. So, even if you are installing it for the first time, you will face no difficulty doing it. 

Plus, the kit is exceptionally well-stocked. Apart from the tank, there’s one UL heater, filter, energy-saving, and color-changing LEDs, and 2 Wonderland plant multipacks included in the package. You will not have to incur any extra expenses to buy any essential tools. 

515o7A0cg1L. SL500

What Could’ve Been Better?

Even though the package includes a thermometer that helps you keep a check on the water temperature, there’s a small glitch. It is a little too big and tends to stick out of the tank. We suggest that you be careful while walking around it. 

Pros
  • Exceptionally well-designed
  • Compact size
  • Includes detailed user instruction
  • Comes with all essential accessories
Cons
  • Size of the thermometer is too big
  1. FREESEA 1.2 Gallon Betta Aquarium Fish Tank

FREESEA is a popular name in the market, and for years they have been making top-quality fish-keeping tools and accessories. Their 1.2 Gallon Betta Aquarium Fish Tank is one of the best out there and plays a significant role in enhancing your room’s beauty once you install it.

1.2 Gallon Aquarium Starter Kits , Aquariums Square Betta...
  • 🐠 [Best Small Fish Tank on amazon]: The 1.2 gallon office...
  • 👍 [Free Aquarium starter kit]: there is a free complete...
  • 🔌 [Power supply]: The power bank or computer terminal are...
  • ☎ As you know, fish tank is fragile products,and there are...

Why Did We Like It?

The first thing that we noticed about this item is how it adds a pleasant feel to the room. Its visual aesthetic is totally on point! The tank includes decorative LED lights and some artificial aquatic plants that make you feel very calm when you look at it.

While the kit contains all the essentials, you can always add more items suited to your preference. Feel free to unleash your creativity!

Moreover, as we have mentioned before, this item is a stellar performer. It comes with an excellent filtration system that keeps the water in the tank speckles and maintains the best condition inside. The filtration system is well-hidden from view and placed behind the tank to not ruin its aesthetic value. 

Plus, they offer incredible customer support. You can reach out to them 24×7 in case there’s some maintenance issue to resolve or if you need help setting it up. 

518 yv1QV6L. SL500

What Could’ve Been Better?

Powering this item might seem a little challenging to some. We noticed that the cord is short, and you have to ensure that there is a charging point close to the tank. Otherwise, you can use an extension cord to power it easily. Even the USB that is included in the pack comes without an adapter that you might have to purchase separately.

Pros
  • Designed exceptionally well
  • Highly efficient filtration system
  • Responsive customer service
  • Easy set-up process
Cons
  • Power cord is not long enough
  1. Hygger Horizon 8 Gallon LED Glass Aquarium Kit

If ease of use and functional design are your major lookouts, we suggest that you check out the Hygger Horizon 8 Gallon LED Glass Aquarium Kit. This is a good option if you are a hobbyist or someone interested to give fish keeping a try.

Sale
Hygger Horizon 8 Gallon LED Glass Aquarium Kit for Starters...
  • 🐠【Hygger Aquarium Kit Includes】one 7W 110GPH internal...
  • 🐠【Mutil-modes LED Light】The aquarium led light is...
  • 🐠【Durable Power Filter】The aquarium power filter is...
  • 🐠【New View Curved Tank】Tank size: 19" L x 11.8" W x...

Why Did We Like It?

As we have mentioned before, this kit is extremely easy to use. Setting up is a cakewalk because of the detailed instruction guide that you get with the package. Even cleaning and regular maintenance are pretty cost-effective and straightforward. 

Moreover, you do not need any added accessories to set up this item. It requires no special stand, and the cushioned bottom of the tank prevents it from sliding off. Place it on any table that you fancy, and you are good to go!

And the best thing about this is the 3D background décor. It is stuck to the back of the tank with water-proof glue, and it makes it look like a dreamy underwater world. This provides an excellent playground for small fish and shrimps and brightens the aquarium, making it look more lively. 

What Could’ve Been Better?

While using this, there’s one thing that you need to keep in mind. The filtration system is quite strong and is not very suitable for small betta fish. We recommend that you turn down the power of the system or avoid putting tiny fish in the tank. 

Pros
  • Maintenance is simple and cost-effective
  • Brilliant design
  • Cleaning the tank is quite easy
  • Simple installation process
Cons
  • Filtration system not suitable for small fish
  1. biOrb 45653 Halo Aquarium

No one can deny that the biOrb 45653 Halo Aquarium is one of the most compact and beautiful reef tanks that you can get your hands on. It is a circular glass ball that can be a great gift as a home décor item. Your fish will become healthy and survive well in this tank. 

biOrb HALO 15 Aquarium with MCR Lighting - 4 gallon, Grey...
  • Constructed Out of Acrylic - 10 times stronger than glass,...
  • True 5 Stage Filtration - Biological, Mechanical, Chemical,...
  • Low Voltage - All biOrb aquariums operate from a 12V...
  • LED Lighting - Multi-Color Remote controlled LED lighting...

Why Did We Like It?

Feeding the fish will no longer be a hassle with this product. There’s no need to slide off the heavy glass or turn off the tank when you put the granules. This item comes with a hinged lid that gives you easy access. The feed hole is covered with a silicone plug, and you do not have to worry about the water evaporating fast. 

Plus, the design of this tank is such that the waterline is not visible. The circular shape of the aquarium conceals the water line completely. Similarly, the airline is placed at the bottom of the tank and discreetly goes to the back of the aquarium. 

Additionally, the simplicity involved in operating this item is incredible. It has non-slip feet at the bottom that enable you to place the tank anywhere you like without fearing that it might slip. 

51Cd0LOaGKL. SL500

What Could’ve Been Better?

The only downside that we noticed about this item is that sometimes it gets a little challenging to work with a magnetic lid. If you decide to put more accessories in the tank, such as submersible water heaters, the chances of the lid remaining open are rather high. 

Pros
  • Easy to use
  • Cleaning is quite convenient
  • Water does not evaporate easily
  • Waterline and airline are well concealed
Cons
  • Big accessories may not fit in
  1. Hygger Small Betta Fish Tank with LED Lighting

We have almost reached the end of the list, and next up, we have the Hygger Small Betta Fish Tank with LED Lighting. It is a compact and vibrant fish tank that can be a good fit even for small desktops, office spaces, or countertops. This nano reef tank can be an excellent gift for family and friends.

Hygger Small Betta Fish Tank with LED Lighting, 4 Gallon...
  • Hygger 4 Gallon Aquarium Starter Kit Includes – 4 gallon...
  • Smart Touch Screen LED Lighting Hood – Simple touch to the...
  • Quiet 3-IN-1 Water Pump – This 3-watt submersible pump...
  • Easy Access Flip Lid – Flipped plastic canopy is easy to...

Why Did We Like It?

What we liked best is the lighting in the tank. It comes with smart LED lights that get switched on with just a simple touch on the screen. The digital numbers are placed right on the aquarium lid, so it is easy to access them. 

Moreover, there are four lighting modes that you can enjoy. During the daytime, you can keep it shimmering white and shift to a relaxing moonlight at night. If you are feeling quirky, the blue and green options are great too. 

Plus, operating the item is pretty straightforward. The lid is actually a lightweight plastic canopy that can be removed for easy access and feeding the fish. This also makes regular maintenance work simpler and less time-consuming. 

Additionally, the digital thermometer placed in the tank is quite easy to read and gives you a correct reading of the water condition to ensure the fish’s good health. 

518dyrf6M+L. SL500

What Could’ve Been Better?

While using it, you need to know that this tank is not made for small betta fish. The current produced by the filtration system is too strong for their tiny bodies. Take note of this to avoid any fatal accidents. 

Pros
  • Great lighting technology
  • Comes with energy-saving features
  • Helps maintain correct water temperature
  • Easy to feed the fish
Cons
  • Not suitable for small fish
  1. BioCube Coralife Size 32 LED Aquarium

The BioCube Coralife Size 32 LED Aquarium is the final product on our list, and there’s no way we could have wrapped up without mentioning it. The design is a unique amalgamation of everything sleek and magnificent. It is quite a conversation starter too.

BioCube Coralife Size 32 LED Aquarium Reef Package (with New...
  • This REEF PACKAGE combines the Size 32 LED BioCube with the...
  • The Coralife NEW STYLE Size 32 LED BioCube Aquarium features...
  • Just like older BioCubes, it has a compact and customizable...
  • Compatible with all existing BioCube accessories

Why Did We Like It?

The first thing we noticed about this item is its design. It comes with a sleek framing, and that, combined with a modern design, makes it stand among other decorative pieces in your room. 

Moreover, you do not have to manually change the lighting at different times during the day. The lid is integrated with LED lights that offer different color modes. Depending on the timing and your preferences, you can modify the light settings. 

Additionally, the filtration system in this tank is entirely customizable. So, depending on the kind of fish or corals that you want to keep, go ahead and set the system’s power accordingly. This would help you prevent any form of probable accidents that might be fatal to the fish. 

51hC8KlH1yL. SL500

What Could’ve Been Better?

The only downside to this product is that the protein skimmer included in the pack is of poor quality. Indeed, the kit is well stocked; we couldn’t help but feel that the quality of the skimmer could have been better. 

Pros
  • Incredible design
  • Can accommodate different types of fish
  • Adjustable LED lights
  • Safe for fishes
Cons
  • Protein skimmer calls for improvement

Best Nano Reef Tank of 2021 03

Nano Reef Tank Buyer’s Guide

Now that you have read about the top 10 nano reef tanks, were you able to make a choice? Well, we know it is not so simple. Just knowing about the products’ features is not enough to help you make the best call. 

There are a few other factors that need to be taken into consideration. And in this section, we are discussing them in detail to help you make an informed decision. So, let’s check them out!

  1. Tank Shape And Size

This is one of the most important considerations before you decide on an option. The size of the tank directly affects the health of your fish. If you already know what kind of fish or coral you want to keep, it is better to select a tank accordingly. 

Note that a bigger tank is better if you want to house more fish and is highly suitable for corals.

The shape of the reef tank is also quite crucial. Mostly, the common types either come in squares or cubes. We have noticed that people tend to opt mainly for the cube-shaped ones since they look more attractive. 

Thus, we suggest that you can go for a large nano tank unless space is an issue and keep adding new fish as and when you like. 

  1. Lights

Lights add beauty to the reef tanks, and you should always be careful on this front. Not just that, in case you are housing corals in your tank, their growth and color are highly dependent on the kind of light that’s present in the tank. 

If you are keeping saltwater corals, you will need a high color temperature warm LED lighting system. And in case you are going for freshwater marine life, you will require a low-temperature LED to support their growth.

In the list mentioned above, you will find options that come with adjustable LED color settings. You do not have to stick to just white or yellow; you can play with other colors, like blue and red. However, always keep in mind to go for energy-saving options to make sure that the power consumption does not hit the roof.

Corals in a Marine Aquarium.

Final Words

With that, we have reached the end of this comprehensive guide reviewing the top nano reef tanks of the year. And we hope you enjoyed reading about it as much as we enjoyed compiling all the information for you. 

But before we take our leave, we would like to let you in on our favorites. The award for the best item overall goes to the Coralife LED Biocube 100530106. If your primary lookout is the ease of use and stellar looks, then the MarineLand Contour ML90610 Glass Aquarium Kit is a great choice. 

And if you want to get your hands on a tank with fantastic LED lighting, the GloFish NV33823 Aquarium Kit Fish Tank is an excellent consideration. Keep a watch on this space for more such interesting reads. 

And that’s a wrap. Until next time, take care!

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