5 Great 40 Gallon Fish Tanks For Sale (For Fish That NEED Space)

When it comes to buying fish tanks, the very first thing you should consider is the size of the tank. While fish tanks come in diverse sizes, the most common and standard size for a fish aquarium is 40 gallon. Yes, fish tanks are measured not in inches, but the amount of water that they can hold.

The size of a tank decides how many fish you can keep in it. There is a basic rule here: An inch of fish per gallon of water.

This means that for a 40 gallon fish tank, you could easily fit in 8 - five inches fish or 13 three inches fish. All you need to do is work out the math, do a little research and you’re good to go.

Other than that, you can also add filters to keep the water clean, gravel to promote healthy water and UV lights or hoods to improve the aesthetics of the tank.

Without much ado, here are five great 40 gallon fish tanks for sale that you might want to check out:

SPOILER ALERT... Here are our FAVORITE PICKS:

OUR FAVORITE PICK
SeaClear 40 gal Acrylic Aquarium Combo Set, 36 by 15 by 16", Clear
Innovative Marine Innovative Marine Nuvo Fusion Mini 40 Gallon Aquarium, Clear, Glass Aquariums
Aquarium Masters 40 Gallon Breeder Aquarium, by, For Marine Fish, Invertebrates and Tropical Fish! AM11040
$284.76
$442.19
$265.00
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-
163 Reviews
2 Reviews
2 Reviews
OUR FAVORITE PICK
SeaClear 40 gal Acrylic Aquarium Combo Set, 36 by 15 by 16", Clear
$284.76
163 Reviews
Innovative Marine Innovative Marine Nuvo Fusion Mini 40 Gallon Aquarium, Clear, Glass Aquariums
$442.19
-
2 Reviews
Aquarium Masters 40 Gallon Breeder Aquarium, by, For Marine Fish, Invertebrates and Tropical Fish! AM11040
$265.00
-
2 Reviews

Last update on 2018-06-22 at 02:55 Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.

1. Imagitarium 40-Gallon Modular Aquarium Magnetic Panels

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Imagitarium 40 Gallon Modular Aquarium is one of the best choices you will make. The main reason behind its popularity is the look it carries. This one can give a lift to the room you put it in, and is suitable for both homes and offices.

This 40 gallon fish tank is sturdy and durable thanks to the magnetic panels attached to it. Also, there is plenty of space in this fish tank for you to add a cartridge filter and ensure that the water remains clean at all times.

Adding a filter is very essential when you own a big tank. A big tank means more space and more fish, and the more fish you have, the more waste they create, increasing the need to have a filter.

The con of the product is that you have to level the feet using a cardboard or the foam because there’s a storage space below the aquarium which might imbalance the aquarium. Other than that, this is one of the most amazing 40 gallon fish tanks for sale.

Pros

Cons

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    Improves the look of the space it is kept at.
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    Easy to maintain.
  • Might get a bit out of balance if you store stuff under the aquarium cabinet.

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2. 40 Gallon Breeder Aquarium, by Aquarium Masters

Aquarium Masters 40 Gallon Breeder Aquarium, by, For Marine Fish, Invertebrates and Tropical Fish! AM11040

If you’re searching for an aquarium that is strong and can fit in more than 8 fish, then bring home the 40 Gallon Breeder Aquarium by Aquarium Masters. This tank is assembled with the finest materials, and is one of the most reliable choices out there as it lasts longer than most similar products on the market.

The glass on the aquarium is distortion free and the edges shine bright as they are diamond polished, which also makes them more secure.

The grey-black combination improves the look of the house as it is composed of gray-black silicone that also prevents leakage.  Also, you can add a suitable filter without any issues as it is big enough to accommodate all kind of filters.

This 40 gallon fish tank for sale packs it all, however, it’s a bit pricey for a 40 gallon tank.

Pros

Cons

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    Distortion free glass
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    Diamond edges.
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    Gray black silicone layering around the edges to prevent leaking.
  • Costly

3. SeaClear 40 Gal Acrylic Aquarium Combo Set

SeaClear 40 gal Acrylic Aquarium Combo Set, 36 by 15 by 16', Clear

If you are looking for 40 gallon fish tanks for sale then consider this one as it comes with several added items, which can save you money. Buying this 40 gallon fish tank will give you an aquarium, a reflector along with a 24 inches light that can be fixed to the aquarium.

The aquarium is made up of acrylic glass, which is a great benefit since acrylic glass is light in weight and is also scratch resistant. This makes it easier to carry the aquarium, and you do not even have to worry much about its maintenance.

This tank is ideal for people who have children and pets at home because it is less prone to crack or damage.

While this is a perfect unit, it has one small flaw. The light fixture doesn’t sit evenly on the tank and you will have to buy a bulb on your own, it doesn’t come with the package.

Pros

Cons

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    Made up of durable durable material which is less prone to damage.
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    Comes with a light fixture and reflector.
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    Lighter.
  • Light fixture isn’t fixed evenly.

4. Innovative Marine Innovative Marine Nuvo Fusion Mini 40 Gallon Aquarium

Innovative Marine Innovative Marine Nuvo Fusion Mini 40 Gallon Aquarium, Clear, Glass Aquariums

This aquarium comes with some unique features and has a solid body. It comes with a filter and there’s a double overflow feature in this tank which helps to regulate the water nicely and keep the water clean. Moreover, it is also very attractive

Most aquarium lids prevent light from entering into the aquarium, but this one comes with a mesh lid that makes it possible for the light to directly fall on the water, which makes it look even more attractive. You can easily place it next to the window in your office or home to improve the aesthetics of your home.

You can also add a protein skimmer, LED light and circulation pump to improve water movement and prolong the life of your fish. However, you will need to buy the stand to place it on by yourself because it doesn't come with the package.

Pros

Cons

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    Durable.
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    Comes with a filter.
  • You will need to buy a separate table or a stand to place the tank.

5. Full Acrylic 360 Cylinder Aquarium Tank w/ Black Trim By Vepotek

Full Acrylic 360 Cylinder Aquarium Tank w/ Black Trim 25 Gallons, 40 Gallons & 50 Gallons

Some of the most durable fish tanks on the market today are made by Vepotek and the Full Acrylic 360 Cylinder Aquarium Tank is a great contender when it comes to reliable fish tanks. This one comes with a stand, which means you will have no difficulty in finding a place for it.

Moreover, it comes with other accessories as well, including a filtration system, LED light, air pump and water pumps. You can use these things to make the fish tank perfect for all kind of sea creatures.

It is made up of acrylic material, which is scratch resistant and also a lot more clearer than glass.

The flaw of this product is that it is a customized “do it yourself” type of a tank and you will have to set it up yourself by reading the instruction manuals that come with it. While the instructions are easy, some might not like the trouble it takes to get it started.

Pros

Cons

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    Lighter and safer.
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    Comes with additional useful things (filter, light, pumps etc).
  • A bit difficult to install.

Verdict

These are some of the best 40 gallon fish tanks for sale. If you want a fish tank for your home or office, consider one of these options. While it may not be the best for offices, but if you have space then you can easily put a 40 gallon tank in a corner, but remember that they take a lot of space.

They are good for 8 to 10 fish, but that largely depends on the size of the fish.

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