AquariumDimensions.com was Created to Provide Information on Reef Tank and Freshwater Fish Tank Aquarium Dimension and Size Questions.
If you have any questions on standard fish tank dimensions or how to start a fish tank, this is a great place to start.
All dimensions in this fish tank size table are outside edge to outside edge using the following picture for Width, Length, and Height:

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Size (Gal) | Image | Type | Length (in.) | Width (in.) | Height (in.) | Brand | |
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2.5 | Glass, Mini | 12 3/16 | 6 1/8 | 8 1/8 | All Glass Aquarium (AGA) - Aqueon*, Marineland | Shop Now |
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3 Cube | Acrylic | 10 | 10 | 10.5 | Tetra | Shop Now |
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Glass | 16 3/16 | 8 3/8 | 10 1/2 | AGA - (Aqueon), Marineland | Shop Now |
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6.6 | Acrylic | 13 3/4 | 11 3/4 | 11 | Imagitarium | Shop Now |
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9 (Nanowave) | ![]() | Glass | 30 | 30 | 30 | Aquamedic | Shop Now |
10 | ![]() | Glass | 20 1/4 | 10 1/2 | 12 9/16 | AGA - (Aqueon), Marineland | Shop Now |
10 | ![]() | Rimless | 23.6 | 10.2 | 10.6 | JBJ | Shop Now |
8 Cube | Acrylic | 12.6 | 12.6 | 13.6 | biOrb | Shop Now |
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16 BioCube | ![]() | Glass, All-In-One | 15.5 | 15 | 16.7 | Oceanic | Shop Now |
15 | Glass | 24 1/4 | 12 1/2 | 12 3/4 | AGA - (Aqueon), Marineland | Shop Now |
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15 Column | Glass | 13.6 | 13.8 | 24.8 | AGA - (Aqueon) | Shop Now |
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16 Cube | Acrylic | 15.7 | 15.7 | 17 | biOrb | Shop Now |
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20 High | Glass | 24 1/4 | 12 1/2 | 16 3/4 | AGA - (Aqueon), Marineland | Shop Now |
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20 High | Acrylic | 24 | 13 | 16 | Clear-For-Life, Seaclear | Shop Now |
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20 Cube | Glass | 18.25 | 16.25 | 18.7 | Waterbox | Shop Now |
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20 High | Glass | 27 | 16 | 21 | AGA - (Aqueon), Marineland | Shop Now |
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20 Long | Acrylic | 30 | 10 | 14 | Clear-For-Life, Seaclear | Shop Now |
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25 | Glass | 23.6 | 15.7 | 15.7 | Landen | Shop Now | |
29 | Glass | 30 1/4 | 12 1/2 | 18 3/4 | AGA - (Aqueon), Marineland, Aqua Culture | Shop Now |
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29 | Acrylic | 30 | 12 | 18 | Clear-For-Life, Seaclear | Shop Now |
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32 | Glass, All-In-One | 20.8 | 20.1 | 19 | Oceanic | Shop Now |
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30 | ![]() | Glass | 36 1/4 | 12 5/8 | 16 3/4 | AGA (Aqueon), Marineland | Shop Now |
30 | ![]() | Acrylic | 36 | 12 | 16 | Seaclear | Shop Now |
30 Extra High | ![]() | Glass | 24 1/4 | 12 1/2 | 24 3/4 | AGA - (Aqueon), Marineland | |
30 Extra High | Acrylic | 24 | 13 | 24 | Seaclear | ||
30 Breeder | ![]() | Glass | 36 3/16 | 18 1/4 | 12 15/16 | AGA - (Aqueon), Marineland | |
33 Long | ![]() | Glass | 48 1/4 | 12 3/4 | 13 3/8 | AGA - (Aqueon) | |
37 | Glass | 30 1/4 | 12 1/2 | 22 3/4 | AGA - (Aqueon), Marineland | Shop Now |
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38 | ![]() | Glass | 36 1/4 | 12 5/8 | 19 3/4 | AGA - (Aqueon) | |
40 Breeder | Glass | 36 3/16 | 18 1/4 | 16 15/16 | AGA - (Aqueon), Marineland | Shop Now |
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40 | Acrylic | 36 | 15 | 16 | Clear-For-Life, Seaclear | Shop Now |
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40 Long | ![]() | Glass | 48 1/4 | 12 3/4 | 16 7/8 | AGA - (Aqueon), Marineland | |
40 High | ![]() | Glass | 36 | 13 | 20 | Marineland | |
45 | ![]() | Glass | 36 1/4 | 12 5/8 | 23 3/4 | AGA - Aqueon | |
50 Cube | Glass | 24 | 24 | 20 | SC Aquariums | Shop Now |
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50 | Acrylic | 36 | 15 | 20 | Clear-For-Life, Seaclear | Shop Now |
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55 | Glass | 48 1/4 | 12 3/4 | 21 | AGA - (Aqueon), Marineland, Aqua Culture, Tetra | Shop Now |
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55 Tall | ![]() | Acrylic | 36 | 15 | 24 | Clear-For-Life | |
57 | Frameless Glass | 36 | 18 | 21 | Oceanic, Aquarium Masters | Shop Now |
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60 | ![]() | Glass | 48 | 13 | 24 | Marineland | |
60 | ![]() | Acrylic | 48 | 15 | 18 | Clear-For-Life, Seaclear | |
60 Cube | ![]() | Acrylic | 48 | 15 | 18 | Clear-For-Life | Shop Now |
65 | ![]() | Glass | 36 3/8 | 18 3/8 | 25 | AGA - (Aqueon), Marineland | |
65 | ![]() | Acrylic | 36 | 18 | 24 | Clear-For-Life, Seaclear | |
75 | ![]() | Glass | 48 1/2 | 18 1/2 | 21 1/8 | AGA - (Aqueon), Marineland | Shop Now |
75 | ![]() | Acrylic | 48 | 18 | 20 | Clear-For-Life, Seaclear | Shop Now |
75 Tall | Acrylic | 48 | 15 | 24 | Clear-For-Life, Seaclear | Shop Now |
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80 Cube | Glass | 32 | 24 | 24 | SB Aquariums | Shop Now |
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90 | Glass | 48 1/2 | 18 1/2 | 25 3/8 | AGA - (Aqueon), Marineland, Seapora | Shop Now |
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90 | Acrylic | 48 | 18 | 24 | Clear-For-Life, Seaclear | Shop Now |
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100 | Acrylic | 60 | 18 | 20 | Clear-For-Life, Seaclear | Shop Now |
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110 | Glass | 48 | 18 | 30 | AGA - (Aqueon) | ||
110 | Acrylic | 48 | 18 | 30 | Seaclear | ||
120 | Glass | 48 1/2 | 24 1/2 | 25 1/2 | AGA - (Aqueon), Marineland, SC Aquariums | Shop Now |
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120 | Acrylic | 48 | 24 | 24 | Seaclear | ||
125 | ![]() | Glass | 72 1/2 | 18 1/2 | 23 3/8 | AGA - (Aqueon) | |
125 | Acrylic | 72 | 18 | 20 | Clear-For-Life, Seaclear | Shop Now |
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125 Tall | Acrylic | 60 | 18 | 24 | Clear-For-Life, Seaclear | Shop Now |
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135 | Acrylic | 72 | 18 | 24 | Clear-For-Life, Seaclear | Shop Now |
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145 | Acrylic | 60 | 18 | 30 | Seaclear | ||
150 | Glass | 60 | 24 | 24 | SC Aquariums | Shop Now |
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150 | Acrylic | 60 | 24 | 24 | Seaclear | ||
150 Tall | ![]() | Acrylic | 48 | 24 | 30 | Seaclear | |
165 | ![]() | Acrylic | 72 | 18 | 30 | Seaclear | |
180 | ![]() | Glass | 72 1/2 | 24 1/2 | 25 5/8 | AGA - (Aqueon), Marineland | |
180 | Acrylic | 72 | 24 | 24 | Clear-For-Life, Seaclear | Shop Now |
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185 Tall | Acrylic | 60 | 24 | 30 | Seaclear | ||
210 | ![]() | Glass | 72 1/2 | 24 1/2 | 29 5/8 | AGA - (Aqueon) | |
225 | Acrylic | 72 | 24 | 30 | Clear-For-Life, Seaclear | Shop Now |
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225 Tall | Acrylic | 60 | 24 | 36 | Seaclear | ||
240 | Acrylic | 96 | 24 | 24 | Clear-For-Life, Seaclear | Shop Now |
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270 | Acrylic | 72 | 24 | 36 | Clear-For-Life, Seaclear | Shop Now |
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300 | Acrylic | 96 | 24 | 30 | Clear-For-Life, Seaclear | Shop Now |
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500 | ![]() | Acrylic | 96 | 24 | 48 | Clear-For-Life | Shop Now |
*All-Glass-Aquarium was bought by Aqueon. The AGA name brand is still used on a number of products.
**Top Fin is Petsmart’s brand. Top Fin appears to be manufactured by United Pet Group.
We will continue to add Brands and Sizes to this site. Please feel free to email us with any questions or comments.
Celebrating 10 Years at AquariumDimensions.com
Since we began this website over 10 years ago we have expanded our content to hopefully help you continue your research into this exciting and interesting hobby of fish keeping and figuring out the best aquarium dimensions for your home. It’s hard to believe that this site has been around for that long and even harder to believe how much has changed in the pet industry since then.
Aquarium Lighting Advances
We have a number of changes in the industry over the past decade. At the time that aquariumdimensions.com was created, LED’s were just becoming popular, and I started to see them as “supplemental” lighting to the big and beautiful metal halide lights! Although I still love the SUPER bright metal halide, and the fabulous, lifelike appearance that a nice 1000w metal halide daylight bulb would give an aquarium it was certainly using a lot of electricity to power the lamp. However, it was only a matter of time before LED’s would take over all over light types considering how efficient they are, how adaptable an LED can be, and how much brighter LED’s continue to become (especially when comparing wattage compared to brightness).
Trends in Aquariums and Fish Tanks
In addition to the changing technology for aquarium lighting, we have also seen a shift in what is popular in aquariums as well. Although we have no “hard data” on this, it seems like the traditional rectangular glass aquarium is STILL the most popular aquariums that people are seeking out. However, we have seen an emergence of acrylic aquariums that don’t quite fit the mold of the traditional aquarium. We are seeing better technology create smaller and more delicate fish tank equipment, and that is allowing tanks to become smaller and more complicated. In addition, we have seen more “all-in-one” acrylic kits hit the market. I am guessing mainly because many people just want to set a kit on a stand and get it running as soon as possible. In addition, we continue to see automation play a bigger role in the fishkeeping hobby in order to make it less about maintenance and daily chores and more about appreciating your pet, whether it’s a fish, reptile, or amphibian.
I am surprised that this website has make it this far but also grateful that I am able to discuss this great hobby with others and provide (hopefully useful) information about all of the fish tank sizes out there. Good luck with your tanks and don’t hesitate to contact us if you have any questions!
Here some newly created articles that you may find helpful:
20 Gallon Long Aquarium Review
AGA (Aqueon) 30 Gallon Aquarium Review
AGA, Oceanic, Aqueon, and Marineland 20 Gallon Fish Tank Aquarium Reviews
10 Best Small Canister Filters