Top [2021] 10 Best Aquarium Air Stones For Fish Tank & Circulation System

While the latest high-tech aquarium equipment is fun to learn, sometimes it’s the older, simpler devices that stand the test of time. One of the most useful tools for keeping your aquarium healthy is a simple aquarium air flask. Let’s talk about what they bring to the game and how to choose the Best Aquarium Air Stones for each tank!

Aquarium bubbles add extra oxygen to your aquarium water and can add an extra dimension to the look of your setup. You can choose from a natural silver look or go for multi-colored LED lighting to enhance the fairytale look of your bubble screen.

Comparison Table

Custom
SiteStripe Image
Title
Review
Buy
Top Performance
Air Stone Bubble For Aquarium
4.5/5.0
cheapest
Air Stone Bubble Mineral for Aquarium
4.5/5.0

One way to add some visual interest to your tank is to include an air stone with the rest of your tank accessories.

Best Aquarium Air Stones have two different purposes in an aquarium. For starters, they create a stream of constantly moving bubbles.

But did you know that this step also has great advantages for an aquarium? By using the best aquarium air stones, you can ensure that your aquarium looks its best and stays as healthy as possible.

 

Benefits of Using Air Stones in Your Aquarium

So do you absolutely need an air stone for your aquarium?

The short answer?

No, you can probably do without it.

But they have many advantages:

  • Better water circulation in the tank. This reduces dead spots, which helps combat things like blue-green algae.
  • Increased oxygen levels in the water. It’s always a good thing.
  • It just looks great.

Okay, the latter may not be the most scientific reason to add an air stone, but it’s still true.

I really like the look of the bubbles on an air stone. I like it so much that I have at least one air stone in all my tanks.

Anything that looks good and helps make the tank healthier is a winner in my book.

This prevents the water from flowing back into the pump and ruining it if the power goes out or the pump is disconnected.

 

Top [2021] 10 Best Air Stones For Your Aquariums

 

Best Aquarium Air Stone Reviews

1. Air Stone Cylinder Bubble Diffuser Air Stones for Aquarium

These cylindrical air stones are made by a company called Pawfly, one of the best brands in Europe and North America. They are very careful when making these stones and only use high quality non-toxic materials.

Because they use such a high temperature in sintering, these stones are really durable and dissolve oxygen quickly. They also produce many small bubbles rather than a small number of the large ones most fish and plants prefer. Environmentally friendly epoxy resin is used to bond them to the backing and they are individually wrapped to keep them intact.

They are ideal for fish aquariums and hydroponic crops. These stones require a jet volume of 1.3 liters per minute and are recommended for use with a 2-4 W air pump.

You can easily clean them when they start to produce fewer air bubbles and replace them if necessary. You have a lot of backups because they come in a pack of 10.

Check Price On Amazon

2. Air Stone Bubble for Aquarium Hydroponics Pump Ceramic Air Stones Diffuser

This is another great option from Pawfly that is made with the same care they use to make all of their products. They only use high quality non-toxic materials and are really durable.

They are round and flat, giving them a larger surface area that is perfect for creating an impressive stream of bubbles. They need 2 liters of injection volume per minute and a 2 to 5 W pump for best results.

You can clean them regularly and you can use them for a long time. This set of 4 lasts quite a long time.

Check Price On Amazon

3. Air Stone Bubble Mineral Ball Shaped Air Stones Diffuser for Aquarium

This is another great option from Pawfly that generates an impressive number of bubbles. The unique dome shape is 10 cm wide and shows an impressive display of small bubbles.

It has the same exceptional materials and craftsmanship as Pawfly, plus it produces uniformly sized bubbles that look great in any tank.

For this air stone you need an air pump of more than 4W and 20L jet power per minute.

Check Price On Amazon

4. Hygger Aquarium Air Stone Kit

When it comes to your aquarium, make sure it has enough oxygen. Not only does this help your fish and plants thrive, it also ensures the correct gas mixture in the tank. The Hygger Aquarium Air Stone Kit produces small bubbles.

These bubbles are more uniform in size and denser. This can produce a higher oxygen velocity in the water.

This, of course, comes as a set with the air disc stone, a check valve and a check valve. In addition, you receive a T-connector, two suction cups and an adapter to connect to 8 and 4 mm. However, the air pump and air hoses are not included.

Although the amount of bubbles produced is large, you don’t have to worry about the noise level. The device is virtually silent and the bubbles make a soft noise when they rise to the surface. This spray effect brings joy to the fish and is also very entertaining to watch.

You will see that this air stone is quite heavy, but not too heavy. So it sinks to the bottom and doesn’t need suction cups. However, two are included in case you want to install the unit on the side of the tank.

Check Price On Amazon

5. Aquarium Air Stone Bar Fish Tank Air Diffuser

Whether you’ve been an aquarium enthusiast for years or just starting the hobby, you need an air diffuser. This, of course, produces millions of tiny bubbles that are fun to watch. However, it also adds more oxygen to the water, which is what your fish need to thrive.

The Aquarium Air Stone Bar Fish Tank Air Diffuser is a good choice. It doesn’t produce large bubbles, but it also prevents the filter from doing this.

This “nano” diffuser is only six inches long. However, it is still durable and sturdy enough to function for a long time. In addition, it is a non-floating device, which ensures that you do not see that it is ineffective at the top of the tank.

Since it doesn’t float, you don’t have to worry about installation issues. As long as you make sure that the tip enters the water first, the stone will sink to the bottom. Better to clean it monthly with vinegar so that it works smoothly.

Check Price On Amazon

6. NICREW Aquarium Volcano Ornament Kit

An air stone bubbler is designed to produce a constant flow of air to provide more oxygen. This allows for natural filtration. The NICREW Aquarium Volcano Trim Kit is highly decorative in nature, but it also helps the marine life in the tank.

Of course, it has a waterproof design. You must do so because it will be submerged in the water.

You’ll also find three suction cups on the bottom to help it stick in place. This is on the base / bracket that contains the light. Once in place, you place the “volcano” on top and light it.

Its good organizational features allow you to set everything up quickly. There is a small opening in the volcano that goes over the cables. That way, the product doesn’t sit directly on the cables, crimping them over time.

Everything is made with safe and non-toxic materials. Therefore, it is harmless to fish and environmentally friendly. This kit comes with the decoration, the bubble maker, the LED lights and the tubes.

Check Price On Amazon

7. JZMYXA Air Stones

Most important features:

  • Diffuse the air in small bubbles
  • Good for small tanks of 5 gallons (19 liters) or less
  • The best type of air stone to use in sponge filters
  • Made from a small plastic inlet tube and a thin cylinder of ceramic or compressed stone

These small air vents are the most basic type of air stone. They break the large bubbles that come out of the air line into much smaller and finer bubbles.

Air diffusers work very well on their own as air stones for smaller tanks with less powerful air pumps.

In my experience, these are the best types of air stones to use in sponge filters. Because these diffusers are thinner, they fit better in the riser.

And because they produce such fine bubbles, they provide even more lift and flow through the sponge.

These are also best if you have vibrant decor and need to hide the air stone. It used to have different dragon decorations and bubbles had to come out of their mouths.

The problem was, they came with regular 1-inch air stones that were too big and just didn’t work properly. I replaced them with these vents and they worked like a charm the whole time I had the decorations on my tank.

If you are only going to use them as an air stone in your tank, you will need to attach them to the side of the tank with suction cups.

Otherwise, they are too light on their own and will just float to the top of the tank when air is pumped through them.

And they aren’t the coolest air stones out there when worn alone. They’re just a simple bubbler at the airline’s end.

Check Price On Amazon

8. EcoPlus Round Air Stone

Most important features:

  • Large air stone that removes the finest bubbles.
  • It doesn’t have to be insured, it doesn’t float

This air stone really looks different from anything else on the market. Rather than being round or disk-shaped, it looks like a flat-bottomed dome.

I like this because you can place it anywhere in the tank and it just rests on the bottom.

And it’s heavy so there’s no need to vacuum it or try to weigh it.

I have tried several of the disc-shaped air stones and they all need to be attached to the bottom with suction cups.

That means digging out a piece of gravel and gluing the suction cups to the glass at the bottom of the tank.

This is a big pain as far as I am concerned.

I think the dome shape of this Pawfly mineral ball is a better design as you don’t have to put anything on it. You can place this stone on the gravel wherever you want.

And the entrance is at the top of the dome, right in the middle. Therefore, the hose will not kink like stones where the inlet sticks out to the side.

It takes a fairly powerful air pump to run this stone, so it may not be the best choice for smaller setups.

Check Price On Amazon

9. Pawfly 2.4″ Mineral Ball Air Stone

Key features:

  • Flat Bottom Dome Air Stone
  • Heavy enough that you don’t have to hold onto anything
  • A large surface generates a large column of bubbles.

This air stone really looks unlike anything else on the market. Instead of being round or disc-shaped, it looks like a dome with a flat bottom.

I like this because you can place it anywhere in the tank and it will just rest on the bottom.

And it’s heavy, so there’s no need to suck it up or try to weigh it.

I tried several of the disc-shaped air stones and they all have to be attached to the bottom with suction cups.

That means you have to excavate a section of gravel and glue the suction cups to the glass at the bottom of the tank.

This is a great pain as far as I’m concerned.

I think the dome shape of this Pawfly mineral ball is a better design since you don’t have to put anything on it. You can place this stone on the gravel wherever you want.

And the entrance is at the top of the dome, right in the center. Therefore, the hose will not kink like stones where the inlet sticks out the side.

A fairly powerful air pump is needed to run this stone, so it may not be the best choice for smaller setups.

Check Price On Amazon

10. Yootop Aquarium Air Stone Bar

Most important features:

  • Long rod-shaped air stone
  • Make a bubble curtain instead of just a column

This air stone has a long rod shape so that the bubbles come out in a long line instead of from a central point.

This creates a “curtain” of bubbles that will provide a great backdrop to your aquarium. It also moves water over an area larger than a simple bubble stone.

I like this one because there is a plastic frame around the compressed stone. I’ve used frameless bricks before and they tend to break very easily.

The plastic frame of this model makes it a bit sturdier.

One thing about these long, thin air stones: your air pump must be powerful enough to bubble the entire bar.

Even with a strong pump, the entire bar may not bubble evenly. That happened to me with different brands and air pumps.

Check Price On Amazon

What is the best air stone for aquariums?

All of Pawfly’s products are great, but we think their cylindrical bubble diffuser air stones are particularly good.

Pawfly takes a long time to make these air stones and uses only high quality non-toxic materials so you don’t have to worry about whether or not they are safe for your tank.

These stones are very durable and dissolve oxygen at a rapid rate, so you end up with tons of tiny bubbles. When they start to slow down, it’s easy to clean them properly.

And when it comes time to replace them, you’ll have had enough as they come in a 10-pack.

 

Where do you place Air Stone in the aquarium?

The air stones should be placed on the bottom of the tank, but there are a few other things to keep in mind.

First, make sure you place it some distance from the filter. If the bubbles produced by the air stone go directly to the filter, they have less of an effect on the water. Worse, they can destroy your filter.

It is a good idea to place the air stone between the plants and other decorations in your tank so that the bubbles do not interfere with the open areas where the fish are swimming.

If you place your air stone and find that fish are avoiding or hiding that part of the tank, try moving it to a further part of the tank. Placing it behind the plants is one of the things you can try to keep the bubbles out of the area where the fish like to swim.

You can also place air stones under the gravel substrate. This is a great way to get them out of the way and have a little more control over the flow of bubbles, especially if it seems to disturb the fish when they are over gravel.

 

How to install an air stone for aquariums?

Installing an air stone is easy, but before you start, be sure to soak it in water for at least an hour. This will help remove dust particles and completely saturate the stone before placing it in the aquarium.

There are also some other things you will need. First, you must have an air pump. Make sure to use one that is the right size for your air stone. Generally, you will need 2 to 5 W, but that will vary depending on the size of your tank and the blow stone you choose.

You also need a few feet of flexible air hose, a one-way valve and a regular valve. To configure the air pump, connect one end of the flexible hose to the outlet of the pump. Leave about an inch long and split on the regular flap. It acts as a vent valve that will come in handy later when you can use this valve to make flow adjustments to the air stone.

Then lower the hose approximately 5 cm and insert it into the one-way valve. This prevents the water from entering the tube if there is ever a power outage. Attach the air stone to the end of the tube and place it in the aquarium. Connect the pump and make sure it is positioned so that it does not come into contact with water.

 

How to clean the aquarium air stone?

To clean an air stone, you must first remove it from the aquarium and remove it from the air hose. Remove the rubber pieces on the end to ensure that the water can penetrate the entire stone while cleaning.

Maximum a mixture of water and bleach. It is very important to use a minimal amount of bleach. A 10: 1 mix is ​​a good amount. The easiest way to do this is to mix it in a large measuring cup. Make sure it is high enough to completely cover the stone you want to clean.

Soak the stone in the bleach solution for about 3 hours. Shake the stone lightly before removing it to make sure large pieces of debris come loose. Then rinse the stone well under the tap. You can also use a soft-bristled toothbrush to clean the surface. Use lukewarm water and rinse until you are sure all of the bleach has been washed away.

Allow the stone to dry for 2-3 hours before returning it to the tank.

You can also try other methods, especially if you don’t feel comfortable using bleach. Some people rely on effervescent denture cleansers, which contain mild bleach, baking soda and citric acid.

Bleach disinfects, baking soda alkalizes cleaning water and citric acid removes stains. Also, the bubbling effect caused by the chemical reaction helps loosen bacteria or other debris trapped in the stone.

You can also use a good old fashioned one for your elbows if you prefer not to use other additives. Simply place the stone under water and scrub with a stiff brush.

Over time you will notice that the air stone starts to lose its effect even after a good wash. When you are ready, it is time to replace the stone. This is one case where it helps to have a multipack. You have a new one to hand and are ready to use.

 

Conclusion

Air stones can do a lot for an aquarium. The constant stream of bubbles gives any aquarium an interesting look, but they do a lot more than just keep your tank looking good. Fresh looking bubbles also play an important role in helping circulate water from the bottom of the tank that otherwise wouldn’t reach the filter. In addition, the extra surface ensures a faster release of carbon dioxide and a faster absorption of oxygen.

Pawfly is a great brand and they make a lot of great aquarium equipment, including air stones. When it comes to the Best Aquarium Air Stones, their cylindrical bubble diffuser stones are at the top of our list. Pawfly uses high quality materials that are non-toxic and completely safe for your aquarium.

These stones produce a stream of small, hefty bubbles that are a welcome addition to your aquarium. You get 10 in a bundle, so when it comes time to replace them you’ll have plenty of backups left.

Jesse B.
Scroll to Top