How to Make a Small Glass Aquarium: Step-by-Step Guide for Beginners

Do you love keeping fish as pets, but don’t have enough space for a large aquarium? Well, why not make a small glass aquarium that would fit perfectly in any corner of your home? Not only will it provide a cozy home for your aquatic friends but it can also be a lovely decoration piece. Making a small glass aquarium may seem daunting, but don’t worry, it’s not as complicated as it sounds. With some basic materials and a little bit of effort, you can create a beautiful and functional aquarium that would be the envy of all your friends.

The first step is to gather all the necessary materials, such as a glass container, gravel or sand, plants, and of course, your fish. The next step is to prepare the container, including thoroughly cleaning it to remove any dust or residue. After that, you can add the gravel or sand, followed by the plants and water.

Once everything is done, you can then add your fish and watch them enjoy their new home. If you’re interested in making a small glass aquarium but don’t know where to start, don’t worry. We’ll guide you through the entire process, step-by-step, so you can create a beautiful and functional aquarium that you can be proud of.

So, get ready to dive in and create your little aquatic paradise!

Gathering Materials

If you’re interested in creating a small glass aquarium, the first step is to gather all the necessary materials. You’ll need to get a glass tank that fits your desired size and shape, as well as some substrate to create the bottom layer of the tank. Gravel or sand are both popular choices for this.

You’ll also need to get a filter, heater, and lighting system to maintain a healthy environment for your aquatic pets. Finally, you’ll need to add decor such as rocks, plants, and other items to create a comfortable and interesting space for your fish or other aquatic creatures. With all these components in place, you’ll be ready to begin the process of setting up your small glass aquarium and enjoying the sights and sounds of your underwater world.

So go ahead and start gathering your materials, and get ready to create a beautiful and thriving aquatic environment!

Glass container

When gathering materials to make a glass container, the first step is to find the right type of glass. You don’t want just any glass – you need a material that is strong, durable, and can withstand high temperatures. Borosilicate glass is often the best option as it can withstand rapid temperature changes, making it perfect for use in the kitchen.

You’ll also need a way to cut and shape the glass – a glass cutter and sandpaper should do the trick. It’s important to handle the glass with care, and wear protective gloves to avoid cuts. Once you have your glass pieces cut to size, you can start assembling your container.

Consider using a special glass adhesive to bond the pieces together. With a little patience and careful attention to detail, you’ll have a beautiful and functional glass container in no time. So, gather your materials and let’s get started!

how to make a small glass aquarium

Measuring tape

When starting a new project, it’s important to gather all the necessary materials before diving in. One tool you’ll likely need is a measuring tape. Measuring tapes come in various lengths, but the most common size is 25 feet.

You can find them at any hardware store, and they’re relatively inexpensive. But don’t just grab the first one you see! Look for one with a sturdy, yet flexible tape, and easy-to-read measurements. It’s also helpful to find one with a locking mechanism to keep the tape in place while you take your measurements.

Once you have your measuring tape, you’ll be able to accurately measure distances, lengths, and widths. It’s an essential tool for any DIY project or home improvement task.

Silicone sealant

Silicone sealant is a crucial part of any home improvement project. It’s important to gather all the necessary materials before starting the task at hand. Fortunately, the process of gathering materials for silicone sealant usage is quite easy.

First, make sure to have a caulking gun, a utility knife, and a clean rag. Additionally, select the appropriate silicone sealant for the project. It may be necessary to consult an expert at a hardware store to determine the correct type of product for the task.

Remember, there are different types of silicone sealants – some are intended for indoor use, while others are designed for outdoor use. It’s also critical to confirm that the silicone sealant is compatible with the surface that it will be applied to. Taking the necessary steps to gather the appropriate tools and materials beforehand can prevent frustration and ensure that the project runs smoothly.


Gathering materials for making rags can be a fun and rewarding experience. Rags are made from a variety of materials such as cotton, linen, wool, and even old clothing. It’s important to gather high-quality materials so that your rags will be durable and long-lasting.

If you’re starting from scratch, consider visiting a local fabric store or thrift store to find materials. You can also repurpose old clothing that is beyond repair. Sorting through your closet can be a fun activity, and you might find some hidden gems that can be turned into rags.

Another option is to ask friends and family if they have any old clothing or linens they no longer need. By gathering materials from different sources, you can create a unique collection of rags that can be used for cleaning, crafts, and more. So let’s get creative and start gathering our materials for some fantastic rags!

Plastic gloves

Plastic gloves are an essential item to have when you’re gathering materials for your projects. They’re perfect for keeping your hands clean and protected from any harmful chemicals or materials you may be working with. Not only that, but they’re also very versatile and can be used for a variety of different tasks.

Whether you’re working on a DIY project at home or you’re in the middle of a construction job, plastic gloves are a must-have item. They’re also very affordable and can be easily purchased at your local hardware or home improvement store. So the next time you’re gathering materials for your latest project, make sure you have a pair of plastic gloves on hand to keep your hands safe and clean.

Preparing the Glass Container

If you’re planning on making a small glass aquarium, the first and most crucial step is to prepare the container you’ll be using. First, select a glass container with thick walls, as thin materials may crack or leak under the weight of water. It’s also important to ensure that the container you choose is free of any cracks, chips, or scratches that could compromise its integrity.

Once you have your container, wash it thoroughly with warm soap and water, being careful not to use any harsh chemicals that could be harmful to aquatic life. Rinse the container several times with fresh water to ensure all soap residue is removed. Finally, wipe the container dry with a soft, lint-free cloth, and you’re ready to move on to the next step of setting up your small glass aquarium.

Remember, taking the time to properly prepare your container will help ensure a safe and successful home for your aquatic creatures.

Clean the glass container with a rag

When it comes to preparing your glass container, cleanliness is key. Before you start filling it with your favorite ingredients, take the time to give it a thorough cleaning. This involves using a clean rag to wipe down every inch of the container, both inside and out.

Make sure to pay special attention to any crevices or hard-to-reach areas where dust or dirt might accumulate. It’s important to use a gentle, non-abrasive cleaner to avoid scratching or damaging the glass. Once you’ve finished cleaning, be sure to rinse the container thoroughly with warm water to remove any leftover residue.

This step will ensure that your ingredients stay pure and free from any unwanted contaminants. So take a few moments to properly prepare your glass container before use, and you’ll be rewarded with delicious, healthy results every time.

Measure the dimensions of the glass container

Before diving into the fun part of creating a terrarium, it’s important to prepare the glass container properly. The first step in this process is to measure the dimensions of the container carefully. The size of the container will determine how much soil, rocks, and plants you will need for your terrarium.

Additionally, knowing the size of the container will help you to choose the appropriate plants for your terrarium. If your container is tall and narrow, for example, you’ll want to choose plants that can grow vertically, while a wider container may be better suited to plants that prefer to spread out. Taking the time to measure your container will ensure that your terrarium grows and thrives properly.

By preparing the glass container properly, you’ll have a sturdy base upon which to create a beautiful and flourishing terrarium – one that you can enjoy for years to come.

Mark the silicone sealant lines

Preparing a glass container for use can be a bit tedious, but it’s definitely worth the effort! One of the most important steps in this process is marking the silicone sealant lines. You’ll want to take your time with this step and make sure you’re as precise as possible. This will ensure that your container is fully sealed and won’t leak when you’re putting it to use.

To begin, you can use a ruler or tape measure to mark where you want your sealant lines to go. Then, use a pencil to lightly mark those lines on your glass container. Once you’re happy with the placement of your lines, you can move on to the next step.

It might seem like a small detail, but marking your silicone sealant lines can make a big difference in the overall integrity of your glass container. So take your time and get it right!

Sealing the Glass Container

So, you’ve decided to make a small glass aquarium! Good for you! You’ve researched how to choose the right size and type of glass container, picked out your favorite aquatic plants and decorations, and now it’s time to seal the container. This step is crucial, as a leaky aquarium is a disaster waiting to happen. First, make sure the edges of your container are completely clean and dry.

Then, apply a silicone sealant around the edges of the container. You can use a caulking gun or simply squeeze the silicone out of the tube and spread it with your finger. Be sure to apply enough so that there are no gaps or air bubbles.

Let the silicone dry completely before adding any water or fish. Once the silicone has dried, fill your aquarium with water and let it sit for a day or two to check for any leaks. If all is well, you can add your fish and enjoy your new aquatic creation!

Put on plastic gloves

When it comes to sealing a glass container, an essential step is to put on plastic gloves. This will not only protect your hands but also ensure that no dirt or mold particles from your skin transfer onto the glass surface. Cleanliness is crucial when it comes to sealing a glass container, and plastic gloves can help you achieve that.

They are readily available in most grocery or hardware stores and come in various sizes to fit your hand. Once you have put on the gloves, double-check to make sure they fit correctly and that there are no holes or tears. This will ensure that you have a secure and clean grip when working with the glass container.

Overall, putting on plastic gloves is an easy and important step to take when sealing your glass container. It ensures a clean and safe working environment and protects your hands from any harmful substances. So, don’t forget to put on your gloves before sealing that glass container!

Apply silicone sealant to the marked lines

Sealing the Glass Container with Silicone Sealant Once you have marked the lines on your glass container, it’s time to seal it with a silicone sealant. Silicone is a great choice for sealing glass as it is flexible and durable, making it perfect for a container that may be subject to regular wear and tear. Before you begin applying the silicone, make sure your container is clean and dry.

Then, cut the tip of the silicone tube at a 45-degree angle and load it into your caulking gun. Start at one end of the container and work your way down, applying a steady, even bead along the marked lines. Be careful not to apply too much silicone as this can cause it to overflow and create messy drips.

Once you have covered all the marked lines, use your finger or a caulking tool to smooth out the silicone, ensuring it covers all the gaps and is evenly distributed. Allow the silicone to dry completely according to the manufacturer’s instructions before using your newly sealed glass container. By using silicone sealant, you can be confident that your container is well-sealed and will protect the contents inside from outside elements.

Smooth silicone sealant with a gloved finger

When it comes to sealing a glass container, a smooth silicone sealant is the way to go. This material provides a tight seal that will keep your items safe and secure. With a gloved finger, you can easily apply the silicone to the edges of the container.

Make sure to apply even pressure to ensure the sealant is evenly spread. The silicone will dry quickly, within a few short hours, so you won’t have to wait long before using your container. With this method, you can ensure that the contents of your container will stay fresh and protected from air and moisture.

So, next time you need to seal a glass container, reach for some smooth silicone sealant – it’s the perfect solution for all your sealing needs.

Allow silicone sealant to dry for 24 hours

If you’re looking to seal a glass container, silicone sealant is a reliable option. Before you begin, make sure the container is clean and dry. Apply silicone sealant around the edges of the container’s opening and use a caulking gun to ensure even application.

Once applied, allow the silicone sealant to dry for a full 24 hours to ensure it sets properly. It’s essential to let the silicone fully cure; otherwise, the sealant may not adhere correctly, causing leaks and potential damage. After the 24 hours have passed, your glass container should be adequately sealed and ready to use.

Remember, it’s crucial to practice safety when using silicone sealant, such as wearing gloves and avoiding contact with the skin or eyes. Whether you’re storing food, liquids, or other items, a well-sealed glass container can offer peace of mind and protection against spills and leaks. With the right materials and a little patience, sealing a glass container can be a straightforward process that yields excellent results.

Finishing Touches

Now that you have successfully created your own small glass aquarium, it’s time to add in some finishing touches! First, make sure to add a heater to regulate the water temperature for your aquatic friends. You can also add in some natural decorations such as plants or rocks to create a more natural environment. Additionally, a filter is necessary to keep the water clean and healthy for your fish.

Lastly, don’t forget to add in a lid to prevent any curious pets or children from accidentally getting into the tank. With these final touches, your small glass aquarium will be the perfect habitat for your fish and a beautiful addition to any room in your home.

Fill the aquarium with water

Now that you have set up your aquarium with all the necessary equipment, it’s time to put the finishing touches on it by filling it with water. Make sure you have thoroughly cleaned the tank and added all the decorations, plants, and rocks you want before adding water. The temperature of the water should also be in the desired range for the species of fish you plan to keep.

Once you have double-checked everything, you can start to fill the aquarium with water gradually. Be extra careful not to overflow the tank or cause any damage to the equipment. The water should be treated with a dechlorinator to remove any harmful chemicals.

Keep an eye on the water level and adjust it as needed. Once the water reaches the desired level, you can finally add your fish to their new home. Remember to acclimate them slowly to their new environment by gradually adding tank water to their bag or container.

By following these steps, you will be well on your way to a thriving and beautiful aquarium that you can enjoy for years to come!

Add decorations and plants to the aquarium

When it comes to adding the finishing touches to your aquarium, decorations and plants are a great way to enhance the look and feel of your aquatic oasis. Not only do they provide an aesthetically pleasing environment, they also serve as hiding places and homes for your fish to explore. There are countless options when it comes to decorations, from intricate castles and caves to natural-looking driftwood and rocks.

When choosing plants, it’s important to research their specific needs in terms of lighting and water conditions to ensure they thrive in your aquarium. Adding a variety of colors, textures, and heights will create a visually stimulating landscape for your fish and visitors to enjoy. By incorporating decorations and plants, you not only elevate the appearance of your aquarium, but also provide a stimulating, comfortable environment for your underwater inhabitants.

Install an air pump and filter

When it comes to setting up a stunning aquarium for your fish, it’s important to follow the right steps to ensure their health and happiness. One important step to take is installing an air pump and filter. Not only does this help maintain a clean and healthy environment for your fish, but it also adds a sense of tranquility to the aquarium.

The air pump helps to aerate the water, providing much-needed oxygen for your fish to breathe. Meanwhile, the filter helps to get rid of any debris or waste in the water, keeping it clean and safe for your fish to swim in. So, if you want to make sure your aquarium stays healthy and beautiful for years to come, be sure to invest in a reliable air pump and filter.

Your fish will thank you!

Enjoy your new small glass aquarium!

If you’ve just purchased a small glass aquarium, congratulations! You’re well on your way to creating a beautiful underwater world for your fish. After setting up the tank and adding all the necessary equipment, it’s time for the finishing touches. One important aspect of aquarium decoration is substrate – the material that sits at the bottom of the tank.

Gravel is a popular choice because it’s affordable, easy to clean, and comes in a variety of colors and sizes. Another consideration is adding live or artificial plants. Live plants can provide a natural look and help maintain water quality, but they require more care.

Artificial plants are a low-maintenance option that can still look great. Lastly, don’t forget to add some decor elements, such as rocks, driftwood, or small figurines. These little touches can really make your aquarium stand out and provide a visually appealing environment for your fish to thrive in.


In conclusion, creating a small glass aquarium can be a fun and rewarding experience for those with a love for aquatic life and DIY projects. By following these simple steps, you can create a beautiful and peaceful underwater oasis right in your own home. Just remember, the key is to be patient, take your time, and don’t be afraid to get a little wet along the way.

Happy fish-keeping!”


What materials do I need to make a small glass aquarium?
To make a small glass aquarium, you will need a glass container, silicone sealant, aquarium gravel, a filter, a heater, and plants or decorations if desired.

How do I choose the right size glass container for my small aquarium?
When choosing a glass container for your small aquarium, consider the number and size of fish you plan to keep. As a rough guideline, allow 1 gallon of water per inch of fish.

How do I properly clean and prepare my glass container before setting up my small aquarium?
To clean and prepare your glass container, scrub it with warm water and mild soap, rinse thoroughly, and dry completely. Avoid using any chemicals or cleaners that could be harmful to fish.

Do I need special lighting for my small glass aquarium?
Yes, lighting is important for plants and fish in a small aquarium. You can use a small LED light or fluorescent light designed for aquarium use.

How often do I need to change the water in my small glass aquarium?
It’s recommended to change about 10-50% of the water in your small aquarium every week, depending on the number of fish and plants in the tank.

Can I keep live plants in my small glass aquarium?
Yes, live plants not only add aesthetic value but also help maintain good water quality by absorbing nitrates and providing oxygen for fish.

How do I cycle my small glass aquarium before adding fish?
Cycling your small aquarium before adding fish helps establish beneficial bacteria that break down fish waste. To cycle, add fish food to the tank and let it decompose for a week, then test the water levels before adding any fish.