# 55-Gallon Fish Tanks: Dimensions Volume and Stocking Guidelines

## The Ultimate Guide to Understanding the Dimensions and Volume of a 55-Gallon Fish Tank

If you’re planning to set up an aquarium in your home, a 55-gallon tank is an excellent choice. It’s a medium-sized tank that’s perfect for both freshwater and saltwater setups.

However, before you purchase a 55-gallon fish tank, you must understand the dimensions and volume of the tank. This guide will provide you with everything you need to know about a 55-gallon tank, including its dimensions, custom-built options, and how to calculate its volume.

## Standard Dimensions of a 55-Gallon Fish Tank

The standard dimensions of a 55-gallon fish tank are 48 inches in length, 13 inches in width, and 20 inches in height. This is the most common size of a rectangular tank that is readily available in the market.

The dimensions make it suitable for a wide range of fish species, including cichlids, tetras, angelfish, and gouramis.

## Custom-built 55-Gallon Aquariums

If you prefer a custom-built aquarium, you can have one built based on your preferred dimensions. Suppose you’re looking for a tank with broader dimensions but the same volume as a 55-gallon fish tank.

In that case, you can request a custom-built aquarium measuring 36 inches in length, 18 inches in width, and 20 inches in height. The formula for calculating the volume of this custom-built aquarium is Length (36″) x Width (18″) x Height (20″) 231 = 37.76 gallons.

## Calculating the Volume of a 55-Gallon Fish Tank

Whether you’re using a standard or custom-built 55-gallon fish tank, it’s essential to calculate its volume accurately. Knowing the tank’s volume will help you in determining the number and size of fish you can keep in the tank.

The formula for calculating the volume of a rectangular tank is Length x Width x Height 231 = gallons.

## Example Calculation for a 55-Gallon Fish Tank

Using the standard dimensions of a 55-gallon fish tank (48 inches in length, 13 inches in width, and 20 inches in height), the formula for calculating its volume is 48 x 13 x 20 231 = 54.02 gallons. This calculation reveals that a 55-gallon fish tank has a volume of 54.02 gallons and not precisely 55 gallons.

This occurs because aquarium manufacturers round up to make the tank seem larger than it is.

## Benefits of Using a 55-Gallon Fish Tank

A 55-gallon fish tank is an excellent choice because it’s not too big or too small. It can hold a moderate number of fish, and several varieties of fish species thrive in this tank.

You can keep cichlids, tetras, angelfish, gouramis, mollies, and even small groups of goldfish in a 55-gallon tank. The spaciousness of a 55-gallon fish tank allows you to decorate the tank with live plants, rocks, and other aquarium decorations without overcrowding the tank.

The large tank size also means there’s a wide range of filtration options that you can use to maintain excellent water quality in the tank.

## Caution When Filling a 55-Gallon Fish Tank

When filling a 55-gallon fish tank, remember that water is heavy. A gallon of freshwater weighs around 8.34 pounds.

This means that a 55-gallon fish tank can weigh up to 459 pounds when it’s full. Before setting up the aquarium, ensure that your tank stand and flooring are sturdy enough to support the weight of a 55-gallon fish tank.

If the flooring is not level, it can cause the tank to break, spilling water everywhere and potentially damaging your flooring and your fish.

## Conclusion

A 55-gallon fish tank is an excellent size for a medium-sized aquarium, and it’s versatile enough to accommodate a wide range of fish species. Whether you use a standard 55-gallon tank or opt for a custom-built aquarium, it’s essential to calculate the tank’s volume accurately and ensure that your tank stand and flooring can support the tank’s weight.

By following the guidelines in this article, you’ll be well on your way to creating a beautiful and thriving 55-gallon fish tank that you and your family will enjoy for years to come. Remember, a well-maintained aquarium is an excellent way to relieve stress, improve focus, and improve your mood.

Happy fishkeeping!

## Weight Considerations for a 55-Gallon Aquarium

Before setting up a 55-gallon fish tank, it’s crucial to consider its weight as it can be quite heavy when full of water, substrate, and decorations. The average weight of an empty 55-gallon aquarium made of a glass material is around 80 pounds.

However, it’s important to note that not all 55-gallon aquariums are made of glass. Acrylic tanks tend to be lighter, weighing around 50 pounds when empty.

When the tank is full of water, it can weigh up to 456 pounds. A good rule of thumb is to assume that the whole setup will weigh roughly 10 pounds per gallon for freshwater aquariums.

For saltwater aquariums, the weight can be slightly higher due to the additional equipment and decorations required. In addition to the weight of the water, gravel and decorations can increase the weight of the tank considerably.

Although gravel is relatively light, it can add up to 10 to 20 pounds per gallon when wet. Also, decorations can add extra weight.

Therefore, it’s essential to consider both when setting up the aquarium.

## Supporting Structures for a 55-Gallon Aquarium

The weight of a 55-gallon aquarium makes it critical to ensure that it is placed on a sturdy and stable surface. A poorly supported tank can lead to cracks or even breakage, which can result in its contents spilling all over the floor.

It’s essential to place the aquarium on a suitable stand that is strong enough to support it when it’s full of water. There are two options when it comes to choosing a stand.

The first is to purchase an approved stand that’s specifically designed for the size of the tank. Approved stands offer stability and support to the aquarium, ensuring that the weight of the aquarium is distributed evenly across the surface on which it sits.

The second option is to have a custom-built cabinet made for the tank. Custom-built cabinets can be designed to match the decor of your home and provide ample space for storing supplies and equipment.

Regardless of the option you choose, it should be sturdy enough to hold the weight of the tank and its contents.

## Fish Stocking Recommendations for a 55-Gallon Aquarium

A 55-gallon aquarium is a great size for a variety of fish species. The larger tank size provides more space for the fish to swim around, and it allows for greater flexibility in the choice of fish species and the number of fish that can be kept.

A recommended guideline for stocking a 55-gallon tank is to have about one inch of fish per gallon of tank water. This means that the normal stocking level for a 55-gallon tank will be around 55 inches of fish.

Of course, several variables come into play when determining the number of fish that can reside in a 55-gallon tank. These include the species of fish, their size, their behavior, and the type of setup (freshwater or saltwater).

When considering the amount of fish to put in a 55-gallon aquarium, it’s essential not to overload the tank. Overstocking can lead to poor water quality, overcrowding, and aggression between fish species.

A good general rule is to start with a few fish and gradually build up the population over time. In general, it’s better to keep small fish in larger numbers in a 55-gallon aquarium rather than a few large fish.

This is because smaller fish require less swimming space and are less likely to become territorial and aggressive. In conclusion, a 55-gallon aquarium is an excellent size for a home aquarium.

However, as seen above, it’s essential to consider its weight and supporting structures before purchasing or setting up one. Additionally, when it comes to stocking a 55-gallon aquarium, it’s crucial to choose the right number and size of fish species that can thrive in the environment.

By following these guidelines, you can create a beautiful and thriving aquarium that you and your family will enjoy for years to come. In summary, setting up a 55-gallon fish tank requires careful planning and consideration.

It’s crucial to understand the tank’s dimensions, volume, weight, supporting structures, and fish stocking guidelines. By following these guidelines and considering the various factors involved, you can create a beautiful and thriving aquarium that will provide a relaxing and enjoyable experience for years to come.

## FAQs:

Q: What are the dimensions of a standard 55-gallon fish tank? A: The standard dimensions of a 55-gallon fish tank are 48 inches in length, 13 inches in width, and 20 inches in height.

Q: How much does a 55-gallon aquarium weigh? A: The weight of a 55-gallon aquarium depends on the material and its contents.

An empty glass tank weighs around 80 pounds, while a full aquarium can weigh up to 456 pounds. Q: What kind of stand is best for a 55-gallon fish tank?

A: It’s best to use an approved stand that’s specifically designed for the size of the tank. Alternatively, a custom-built cabinet can be used as well.

Q: How many fish can be housed in a 55-gallon fish tank? A: A general guideline is to have approximately one inch of fish per gallon of tank water.

The number of fish ultimately depends on the species, size, and behavior of the fish. Q: Can a saltwater aquarium be set up in a 55-gallon tank?

A: Yes, a saltwater aquarium can be set up in a 55-gallon tank. However, it’s essential to consider the additional weight of saltwater and the equipment required for maintaining a saltwater environment.

Q: How often should I clean my 55-gallon fish tank? A: It’s recommended to perform a partial water change of 10-15% every week and a full water change every month.

It’s also essential to clean the filter, gravel, and decorations regularly to maintain good water quality.