The Expert Guide: 5 Gallon Vs 10 Gallon Aquarium(Fish Tank)

it depends on a number of factors, including the type of fish you keep, the size of your fish, and your personal preferences.

Generally speaking, a 5 gallon aquarium is more than sufficient for most small to medium sized fish. However, if you keep large fish or plan on keeping multiple fish, you may want to consider a 10 gallon aquarium.

Ultimately, the decision comes down to what will work best for you and your fish.

Aquariums come in all shapes and sizes, but the two most common sizes are 5 gallon and 10 gallon. So which is better for your fish?

5 Gallon vs 10 Gallon Fish Tank: Which One Is The Best?

The choice between a 5-gallon and a 10-gallon fish tank depends on several factors, including the type of fish you plan to keep, your experience level as an aquarist, and the available space and budget.

Here are some considerations to help you decide:

  1. Fish Species: Smaller tanks like 5-gallon tanks are suitable for small and low-maintenance fish species such as bettas, guppies, or dwarf shrimp. Larger tanks like 10 gallons provide more flexibility and can accommodate a wider range of fish species.
  2. Maintenance: Smaller tanks are generally more challenging to maintain because they have less water volume. This means that water parameters can fluctuate more rapidly, requiring more frequent water changes and monitoring. Larger tanks are often more stable and forgiving.
  3. Space: Consider the available space in your home or office. A 5-gallon tank can fit on a smaller tabletop or desk, while a 10-gallon tank will require more space and a sturdy stand or surface to support it.
  4. Budget: Smaller tanks are typically less expensive to set up initially, but they may end up costing more in the long run due to the need for frequent water changes and maintenance. Larger tanks have higher upfront costs but can be more cost-effective over time.
  5. Aquascaping and Decoration: Larger tanks provide more room for aquascaping, adding decorations, and creating a visually appealing underwater environment. If you’re interested in creating a complex and diverse aquatic landscape, a 10-gallon tank may be a better choice.
  6. Fish Health: Fish tend to be healthier and less stressed in larger tanks because they have more space to swim and explore. Overcrowding can lead to aggression and health problems, so a 10-gallon tank is generally better for the well-being of your fish.
  7. Skill Level: If you’re new to fishkeeping, starting with a 5-gallon tank can be a good way to learn the basics of aquarium maintenance. As you gain experience, you may choose to upgrade to a larger tank.

In summary, there is no one-size-fits-all answer to whether a 5-gallon or 10-gallon tank is best. It depends on your specific goals, space, budget, and the type of fish you want to keep.

If you’re a beginner, it’s often recommended to start with a 10-gallon tank because it’s more forgiving and allows for a wider range of fish choices.

However, if you have limited space or want a low-maintenance setup with just a few small fish, a 5-gallon tank can be a suitable choice.

Can I Put 10 Fish in a 5 Gallon Tank?

No, you cannot put 10 fish in a 5 gallon tank. This is because a 5 gallon tank is too small to accommodate 10 fish comfortably.

10 fish would produce too much waste for the 5 gallon tank to handle and the water quality would quickly decline, leading to the death of the fish.

Additionally, the smaller size of a 5 gallon tank would mean that the fish would have less space to swim around in and would be more likely to become stressed.

Is 5 Gallon Fish Tank Too Small?

A five gallon fish tank is a popular size for many fish enthusiasts. Though it is not the largest size available, it can still provide a home for a variety of different species of fish.

The main thing to consider when deciding if a five gallon tank is too small for your needs is the number and types of fish you want to keep.

For example, goldfish require at least ten gallons of water each, so a five gallon tank would be too small to house even one goldfish.

On the other hand, bettas only need two and a half gallons, so a five gallon tank could comfortably house two bettas.

When stocking your tank, be sure to research how much space each type of fish needs in order to ensure they all have enough room to swim and thrive.

In addition to considering the space needs of your fish, you must also take into account the filtration system you will need to maintain clean water conditions.

A good rule of thumb is that your filter should turn over the entire volume of your tank at least four times per hour. This means that a filter rated for use in a twenty gallon tank would be adequate for filtering a five gallon tank four times per hour.

Be sure to choose an appropriately sized filter when setting up your aquarium. With proper planning, a five gallon aquarium can be successful and provide years of enjoyment!

Are 10 Gallon Tanks Hard to Maintain?

No, 10 gallon tanks are not hard to maintain. In fact, they can be quite easy to care for if you have the right tools and know-how.

Here are a few tips to help you keep your 10 gallon tank in tip-top shape:

1. Choose the right fish: Not all fish are well-suited for life in a small tank. Before adding any fish to your 10 gallon tank, do your research to make sure they will be a good fit.

2. Keep on top of water changes: A regular water change schedule is essential for any size aquarium, but it’s especially important in a smaller tank like a 10 gallon. Aim to do a partial water change (about 25%) once every week or two.

3. Don’t overstock your tank: It’s tempting to want to cram as many fish into your 10 gallon tank as possible, but this is a recipe for disaster. Overstocking leads to poor water quality and stressed out fish, so resist the urge and stick to a more modest stocking level.

4. Choose low-maintenance plants. Live plants are a great addition to any aquarium, but they can also add another layer of complexity when it comes to maintenance.

How Big is a 10 Gallon Fish Tank?

A ten gallon fish tank is usually about 20 inches long, 12 inches wide, and 18 inches high. The size of the fish tank will determine how many fish you can put in it and still have room for them to swim around.


If you’re just starting out with fishkeeping, a 5 gallon aquarium is a great option. They’re less expensive than larger tanks and easier to maintain. Plus, they take up less space so they’re perfect for small apartments or homes.

However, if you’re looking to add more fish or want to create a more complex setup, then a 10 gallon aquarium is a better choice.

They provide more room for your fish to swim around and give you more options when it comes to decorating and adding features.