Are you looking to get a 200-gallon aquarium to make a statement in your home or office? Knowing the estimated dimensions of your proposed fish tank goes a long way in planning your space. The dimensions of fish tanks vary depending on the shape and manufacturer. In this article, we look at some standard aquariums and their dimensions in different shapes.
The dimensions of a standard 200-gallon fish tank that’s rectangular are 72inches in length,24 inches in width and 30 inches in height. This may vary depending on the manufacturer.
You can choose to have your fish tank custom made in your desired material, shape and specification. For material, you can have a glass or acrylic fish tank: glass aquariums are heavier and not prone to scratches. Acrylic aquariums, on the other hand, are stronger, lighter, but prone to scratches. Acrylic is mostly preferred for taller aquariums.
Comparison Of Different Glass Aquariums
In this section, we compare different sizes of the aquarium by weight and their dimensions. We will also look at different shapes of fish tanks and their dimensions. The weights indicated are for glass aquariums; acrylic fish tanks will weigh less. Let’s get into it.
| Tank Size | Dimensions in L x W x H | Weight When Empty | Weight When Filled |
| Small Fish Tanks | |||
| 2.5 gallon | 12” x 6” x8” | 3 lbs | 27 lbs. |
| 5 gallons | 16” x8” x 10” | 7 lbs | 62 lbs. |
| 10 gallons | 20” x 10 x 12” | 11lbs | 111 lbs. |
| 15 gallons | 24” x 12” x 12” | 21 lbs | 170 lbs. |
| 15 gallon high | 20” x 10” x 18” | 22 lbs | 170 lbs. |
| Medium-Sized Fish Tanks | |||
| 20 gallon high | 24” x 12” x 16” | 25 lbs. | 225 lbs |
| 20 gallon long | 30” x 12” x 12” | 25 lbs | 225 lbs |
| 25 gallons | 24” x 12” x 20 “ | 32 lbs | 282 lbs |
| 29 gallons | 30” x 12” x 18” | 40 lbs | 330 lbs |
| 30-gallon breeder | 36” x 18” x 12” | 48 lbs | 348 lbs |
| 40-gallon breeder | 36” x 18” x 16” | 58 lbs | 458 lbs |
| 40 gallon long | 48” x 12” x 2” | 55 lbs | 455 lbs |
| Large Fish Tanks | |||
| 50 gallons | 36” x 18” x 19” | 100 lbs | 600 lbs |
| 55 gallons | 48” x 13” x 21” | 78 lbs | 625 lbs |
| 65 gallons | 36” x 18” x 24” | 126 lbs | 772 lbs |
| 75 gallons | 48” x 18” x 21” | 140 lbs | 850 lbs |
| 90 gallons | 48” x 18” x 24” | 160 lbs | 1050 lbs |
| 125 gallons | 72” x 18” x 21” | 206 lbs | 1400 lbs |
| 150 gallons | 72” x 18” x 28” | 338 lbs. | 1800 lbs |
| 180 gallons | 72” x 24” x 25” | 430 lbs | 2100 lbs |
| 225 gallons | 72” x 27.5” x 27.5” | 358 lbs | 2158 lbs |
Dimensions Of Different Fish Tanks Shapes And Sizes
You can find an aquarium in various shapes and sizes depending on your preference. Glass fish tanks mostly come in rectangles, bow front rectangle, hexagon or cylinders. Acrylic tanks are available in various other mind-blowing shapes since acrylic is easy to mold to different shapes.
Fish Tanks Exist In The Following Shapes:
1. Rectangle
2. Square
3. Bowfront rectangle/ square
4. Half cylinder
5. Cylinder
6. Hexagon
7. L- shape
8. Bubble
9. Arch
10. Triangle
11. Pentagon
12. triangle end
you can also have a fish tank tailor-made to a different and unique shape for your liking. Let’s have a look at the dimensions and volume of some popular fish tank shapes.
| Rectangle Aquariums | |||
| Dimensions (Inches) | Volume (Gallons) | Thickness (Inches) | |
| Body | Top | ||
| 20 x 10 x 12 | 10 | ||
| 24 x12 x 16 | 20 | ||
| 30 x 12×18 | 29 | 1/4″ | 3/8 |
| 36 x 13 x 16 | 35 | 1/4 | 3/8 |
| 36 x 18 x 20 | 56 | 1/4 | 3/8 |
| 36 x 18 x 24 | 65 | 3/8 | 3/8 |
| 48 x 13 x 20 | 55 | 1/4 | 3/8 |
| 48 x 18 x 20 | 70 | 1/4 | 3/8 |
| 48 x 18 x 24 | 90 | 3/8 | 3/8 |
| 48 x 18 x 30 | 110 | 3/8 | 3/8 |
| 48 X 24 X 24 | 120 | 3/8 | 3/8 |
| 60 x 18 x 20 | 100 | 3/8 | 3/8 |
| 60 x 18 x 24 | 125H | 3/8 | 3/8 |
| 60 x 18 x 30 | 135 | 1/2 | 3/8 |
| Rectangle Aquariums [Square Corners] | |||
| Dimensions | Gallons | Material | |
| Body | Top | ||
| 60 x 24 x 24 | 150 | 3/8 | 3/8 |
| 60 x 24 x 30 | 180 | 1/2 | 1/2 |
| 72 x 18 x 20 | 125 | 3/8 | 3/8 |
| 72 x 18 x 24 | 135 | 3/8 | 3/8 |
| 72 x18 x 30 | 165 | 1/2 | 3/8 |
| 72 x 24 x 24 | 180 | 3/8 | 1/2 |
| 72 x 24 x 30 | 215 | 1/2 | 1/2 |
| 72 x 24 x 36 | 260 | 3/4 | 1/2 |
| 96 x 24 x 24 | 240 | 1/2 | 3/8 |
| 96 x 24 x 30 | 300 | 1/2 | 1/2 |
| 96 x 24 x 30 ** | 300 **3/4 | 3/4 | 3/4 |
| 96 x 24 x 36 | 350 | 3/4 | 3/4 |
| 96 x 36 x 36 | 525 | 3/4 | 3/4 |
| 96 x 48 x 48 | 950 | 1 | 3/4 |
| 120 x 24 x 24 | 290 | 3/4 | 1/2 |
| 120 x 24 x 30 | 360 | 3/4 | 1/2 |
| 120 x 24 x 36 | 435 | 3/4 | 1/2 |
| 120 x 24 x 48 | 580 | 1 | 3/4 |
| 120 x 36 x 36 | 650 | 1 | 3/4 |
| 120 x 36 x 48 | 870 | 1 | 3/4 |
| Hexagon Aquariums | |||
| Dimensions | Gallons | Material | |
| Body | Top | ||
| 17 x 15 x 24 | 20 | ||
| 21 x 18 x 20 | 28 | 1/4 | 3/8 |
| 28 x 24 x 24 | 55 | 1/4 | 3/8 |
| 28 x 24 x 30 | 75 | 3/8 | 3/8 |
| 36 X 31 X30 | 105 | 1/2 | 1/2 |
| Flat Back Hexagon Aquariums | |||
| Dimensions | Gallons | Material | |
| Body | Top | ||
| 36 x 13 x 16 | 30 | 1/4 | 3/8 |
| 48 x 16 x 20 | 60 | 1/4 | 3/8 |
| 60 x 18 x 24 | 100 | 3/8 | 3/8 |
| 72 x 18 x 24 | 125 | 3/8 | 3/8 |
| 72 x 18 x 30 | 150 | 1/2 | 3/8 |
| Pentagon Aquariums | |||
| Dimensions | Gallons | Material | |
| Body | Top | ||
| 24 x 24 x 24 | 50 | 3/8 | 3/8 |
| 24 x 24 x 30 | 60 | 3/8 | 3/8 |
| 30 x 30 x 24 | 75 | 3/8 | 3/8 |
| 36 x 36 x 24 | 95 | 3/8 | 3/8 |
| 36 x 36 x 30 | 120 | 1/2 | 3/8 |
| 48 X 48 X 24 | 150 | 3/8 | 3/8 |
| 48 x 48 x 30 | 180 | 1/2 | 1/2 |
| 1/2 Cylinder Aquariums | |||
| Dimensions | Gallons | Material | |
| Body | Top | ||
| 36 x 18 x 30 | 60 | 3/8 | 3/8 |
| 48 x 24 x 30 | 120 | 1/2 | 1/2 |
| 60 x 30 x 30 | 180 | 1/2 | 1/2 |
| 1/4 Cylinder Aquariums | |||
| Dimensions | Gallons | ||
| 24 X 24 X 24 | 50 | ||
| 27 X 27 X30 | 70 | ||
| 27 X 27 X 36 | 90 | ||
| 36 X 36 X 30 | 130 | ||
| 36 X 36 X 36 | 150 | ||
| Bow Vu Aquarium | |||
| Dimensions | Gallons | Material | |
| Body | Top | ||
| 48 x 17 x 20 | 65 | 1/4 | 3/8 |
| 60 x 18 x 24 | 120 | 3/8 | 3/8 |
| 60 x 24 x 24 | 140 | 3/8 | 3/8 |
| 72 x 24 x 24 | 160 | 3/8 | 3/8 |
| 72 x 24 x 30 | 190 | 1/2 | 1/2 |
As you can tell from the tables above, the dimensions of an aquarium vary depending on its shape. If you wish to know the exact measurements of a specific fish tank, we recommend getting in touch with the manufacturer. You can also opt to have one custom-made for you to your required dimension.
How To Choose The Right Fish Tank
Are you confused about what size fish tank is best for you? Worry not. This section takes you through some key factors to have in mind when buying your first aquarium. Read on!
1. How Many Fish Do You Want To Keep?
The size of your aquarium determines how many fish you can keep. If you want a lot of fish, buy an aquarium that will not be limiting in terms of space. When determining how many fish you can keep in an aquarium, the rule of thumb is 24 square inches for every one inch of adult tropical fish. For goldfish and other Coldwater fish, you need 30 square inches of surface area for every one inch of fish. This extra allowance is because Coldwater fish require more oxygen levels and have a higher body mass.
2. How Well Can You Care For The Fish?
Before getting an aquarium, you need to consider your schedule and how often you can feed the fish and keep the aquarium clean. If you are a beginner with no prior experience handling a fish tank, do not choose an extremely small tank as it is harder to maintain. The best size of fish tank for a beginner is at least 20 gallons.
3. What’s The Purpose Of The Fish Tank?
Some people buy aquariums for personal entertainment and relaxation; if you are among them, even the smallest fish tank can serve the purpose. For some other people, fish tanks are for décor and aesthetics. They want to create a statement in their home or office that will wow guests and be a conversation starter. If you are such a person, you need a fish tank that blends well with your space. The dimensions you end up choosing will be determined by the amount of space you work with.
Conclusion
Choosing a fish tank should be exciting and easy, especially when you know what shape you are looking for. Consult a professional to advise on the dimension and size of the aquarium that is best suited for your situation.
