How Much Does a 10 Gallon Fish Tank Weigh?

How much does a 10 gallon fish tank weigh? Often 20″ x 10″ x 12″ in size, it has an empty weight of roughly 11 lbs and a water weight of about 111 lbs.

There are many different types of fish tanks and their sizes all depend on a number of factors. Materials used (e.g. glass or acrylic), shape, measurements, filters, lighting, and decorations will also help determine your tank’s full weight.


Fish Tank Weight Chart

How heavy is a 10 gallon fish tank when empty and when full of water? Check out the chart below.

These are the common variations of a standard size fish tank:

Small Fish Tank small-fish-tanksmall-fish-tank
Size (gallon)L x W x H (inches)Empty Weight (lbs)Water Weight(lbs)
2.512 x 6 x 8327
516 x 8 x 10762
10 (Leader tank)20 x 10 x 1211111
1524 x 12 x 1221170
15 (High tank)20 x 10 x 1822170
Mid Fish Tankmid-fish-tankmid-fish-tank
20 (High tank)24 x 12 x 1625225
20 (Long tank)30 x 12 x 1225225
Large Fish Tanklarge-fish-tanklarge-fish-tank
5036 x 18 x 19100600
5548 x 13 x 2178625
6536 x 18 x 24126772
7548 x 18 x 21140850
9048 x 18 x 241601050
12572 x 18 x 212061206
15072 x 18 x 283381838
18072 x 24 x 254301870

Not all size 10 fish tank gallons that are 20 dimensions long share the same weight.

A fish tank will weigh much heavier with water–the average weight of a tank involves both its empty and full weight. A 10-gallon aquarium will weigh roughly 111 pounds when filled.

Other factors like material used, measurements, plus added ornaments will determine a tank’s full weight.

Full Tank Calculation


To calculate the exact weight of your nano tank, first determine its volume. Then, multiply that by 8.345 pounds if you have a freshwater tank or 8.554 if you have a saltwater one.

For example: 37.9 x 8.554 = 324.1966.

A good aquarium weight calculator can save you the hassle, especially if you don’t have time.

Read more: How Heavy is a 20-gallon Fish Tank With Water?

Ideal Placement for Your Fish Tank


Nano tanks are easy to move around since they are not as big as other aquariums, but once you’ve filled them up, they won’t be as portable. You’re better off deciding on a permanent or semi-permanent spot where you plan to set them up.

  1. Fish tanks may look great near a window or in a nook, but be aware that you need to keep them from direct sunlight and make them accessible. Sunlight will foster fast algae growth, and a narrow corner is not great for replacing the tank’s water.
  2. Don’t set your fish tank near a radiator or air conditioner since your fish may react poorly to unexpected temperature changes.
  3. Another thing to keep in mind is keeping your tank at a safe distance from wall outlets while keeping the light and filter plugged in.
  4. It’s also best practice to place your fish tank in a visible or common area to keep an eye out for any leaks or abrupt changes in fish behavior.
  5. Also, despite the fact that it’s not yet proven exactly how much sound can harm fish, it is recommended to keep aquariums away from any subwoofers or big speakers.

10 Gallon Aquarium Stand


It’s essential to find the right stand that can support your fish tank. Ideal ones are made of sturdy material like wood and metal, which can provide strong support. The weight of a 10 gallon fish tank requires ample support just as any other tank.

An aquarium stand’s size will depend on the tank’s measurements. The majority of stands that are sold in stores have a 36-inch height. Good cabinet-grade plywood is a popular material used for fish tank platforms because of its durability and water resistance.


How Much Does A 10 Gallon Fish Tank Cost?

Nano tanks often cost about $200 or less (more if made with high-quality materials). Apart from that, you also have to spend on filters, fixtures, water siphon, plants, ornaments, and anything else that’s needed.

How To Aquascape A 10-Gallon Fish Tank

Aquascaping is a great way to make the most out of your nano aquarium and make it look amazing. Proper aquascaping can make a small space appear much wider.

Painting the back of your tank a solid color will add depth and make the colors of your fish stand out! Black is awesome for light-hued fish while blue is great for darker ones.

Plants like java ferns and anubias are excellent choices for your 10-gallon tank. They are very easy to maintain–they do well in low-light conditions and are pretty much hardy since herbivorous fish find their taste foul.

How Many Pounds Of Gravel Can A 10 Gallon (20×10) Fish Tank Hold?

As a general rule, there should be 1.5 pounds of gravel substrate for every gallon of water in a tank. A 10-gallon tank can hold basically 15 pounds of gravel.

What Is The Biggest Fish For A 10 Gallon Tank?

Either a dwarf gourami or betta fish are the largest fish you can easily sustain in a 10-gallon tank. Although both fish develop to a length of about 2.5 inches, take note that female dwarf gouramis can reach a maximum size of 3 inches.

Small fish that thrive in small schools such as rasboras, tetras, and guppies are best for 10 gallon tanks. They don’t grow more than a few inches and they are content with a handful of companions.

Is A 10 Gallon Fish Bowl Okay?

Keeping pet fish in a fish bowl is not recommended because bowls have limited space compared to rectangular tanks. Rectangular fish tanks provide plenty of space for fish to move around and breathe (surface area).

There are also many rectangle fish tank sizes to choose from, so you can find the best one for you.


So, how much does a 10 gallon fish tank weigh? A 10-gallon tank (often 20″ x 10″ x 12″) has an empty weight of about 11 lbs and a water weight of around 111 lbs. It can hold roughly 15 pounds of gravel.

You can calculate your tank’s exact weight by multiplying its volume by 8.345 pounds for freshwater aquariums or 8.554 for saltwater tanks.

A 10-gallon tank usually costs $10 but more if made with high-quality materials. A 10 gallon bowl may be cheaper, but it’s not recommended due to limited space.