What’s the Difference: 29 Gallon Vs 37 Gallon Aquarium

The size of your a 29 Gallon Aquarium is one of the most important factors in determining the success of your fish keeping experience.

A 29 gallon aquarium is a great choice for those who want to keep a small number of fish, or for those who are new to the hobby and want to start with a smaller tank.

A 37 gallon aquarium is a good choice for those who want to keep a larger number of fish, or for those who have more experience with the hobby and are ready to upgrade from a smaller tank.

If you’re like most people, you probably think that all aquariums are the same. But there are actually a few different types of aquariums, and each has its own benefits and drawbacks.

The first thing to consider is size. As you might expect, the 37 gallon aquarium is larger than the 29 gallon aquarium. This means that it can accommodate more fish and other aquatic creatures.

It also means that it will require more maintenance, as there will be more water to clean and filter. Another important consideration is cost. The 37 gallon aquarium will typically cost more than the 29 gallon aquarium.

This is because it’s larger and requires more equipment (such as a larger filter). So, which one should you choose? It really depends on your needs and budget.

If you have a large budget and want an easy-to-maintain aquarium, then the 37 gallon option may be best for you. However, if you’re on a tight budget or don’t want to deal with too much maintenance, then the 29 gallon option may be a better choice for you.

Main Difference between 29 Gallon Vs 37 Gallon Aquarium

The main difference between a 29-gallon and a 37-gallon aquarium is their size and capacity, which can affect the type of fish and aquatic plants you can keep, as well as the overall maintenance requirements. Here are the key distinctions:

  1. Size and Capacity:
    • 29-Gallon Aquarium: This aquarium typically measures around 30 inches in length, 12 inches in width, and 18 inches in height. It has a water capacity of approximately 29 gallons (110 liters).
    • 37-Gallon Aquarium: A 37-gallon tank is slightly larger, measuring around 30 inches in length, 12 inches in width, and 22 inches in height. It can hold approximately 37 gallons (140 liters) of water.
  2. Stocking Options:
    • 29-Gallon Aquarium: While a 29-gallon aquarium provides enough space for a variety of fish species, it is still considered a mid-sized tank. You can keep a small community of fish, such as tetras, guppies, or dwarf cichlids, along with some aquatic plants and decorations. However, it may not be suitable for larger or more demanding species.
    • 37-Gallon Aquarium: With its larger water volume and slightly taller dimensions, a 37-gallon tank offers more flexibility in terms of stocking options. You can keep a wider range of fish, including some larger species or a larger community of smaller fish. It also allows for more diverse aquascaping and planting opportunities.
  3. Maintenance:
    • 29-Gallon Aquarium: Smaller tanks like the 29-gallon require diligent maintenance to maintain water quality and stability. Regular water changes, filtration, and monitoring of parameters like temperature, pH, and ammonia levels are crucial.
    • 37-Gallon Aquarium: While a 37-gallon tank is still manageable for most hobbyists, it provides a bit more stability due to its larger water volume. However, it still requires regular maintenance to keep the aquatic environment healthy.
  4. Cost:
    • 29-Gallon Aquarium: Generally, a 29-gallon tank will be less expensive to set up and maintain compared to a 37-gallon tank. The difference in cost may come from factors like the tank itself, filtration, lighting, and other equipment.
  5. Space Requirements:
    • 29-Gallon Aquarium: Smaller and more compact, it is suitable for spaces with limited room.
    • 37-Gallon Aquarium: Slightly larger and taller, it may require a bit more space and support due to its increased weight when filled with water.

the main difference between a 29-gallon and a 37-gallon aquarium is their size and capacity, which influence the variety of fish and plants you can keep, as well as maintenance requirements.

The choice between the two depends on your available space, budget, and the specific aquatic ecosystem you want to create and maintain. Always ensure that you properly research and plan for the needs of the fish and plants you intend to keep in your aquarium.

29 Gallon Tank Dimensions

This is a popular size for many fish enthusiasts, as it offers plenty of space for your fish to swim around and stay healthy. Plus, it’s not so large that it becomes difficult to maintain.

So, what are the dimensions of a 29 gallon fish tank? The standard size for this type of tank is 30″ x 12″ x 18″. However, there may be some slight variations depending on the manufacturer.

Be sure to check the specifications before making your purchase. Now that you know the dimensions of a 29 gallon fish tank, you can start planning your aquarium setup! Be sure to choose an appropriate location for your new tank and take into account the weight when selecting a stand.

Once you have everything in place, you can begin adding your fish and plants. We hope this blog post has been helpful in providing you with information about the dimensions of a 29 gallon fish tank. If you have any further questions, please feel free to contact us or leave a comment below.

How Big is a 37 Gallon Tank?

A 37 gallon tank is approximately 48” L x 18.5” W x 21” H. The dimensions may vary slightly depending on the manufacturer.

Is a 29 Gallon Tank Big?

A 29 gallon tank is big. It can accommodate a wide variety of fish, from small to large. You can also keep a variety of different species in a 29 gallon tank.

If you are thinking about starting a freshwater aquarium, a 29 gallon tank is a good choice.

How Tall is a 37 Gallon Fish Tank?

A 37 gallon fish tank is 48 inches wide, 16.5 inches tall and 20.5 inches deep.

What is a 29 Gallon Tank Good For?

A 29 gallon tank is a good size for many different types of fish. It can accommodate a small school of fish, or a few larger fish. If you are considering keeping more than one type of fish in your tank, make sure that they are compatible before making your purchase.


The debate of 29 gallon vs 37 gallon aquarium is one that has been around for years. Each size has its own advantages and disadvantages, so it really depends on what you are looking for in an aquarium. If you want a larger fish tank, then the 37 gallon aquarium is probably the better choice.

However, if you are looking for a smaller fish tank that is easier to maintain, then the 29 gallon aquarium might be a better option.