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Best CO2 Diffusers for Aquariums

The Best CO2 Diffuser for Aquariums 2020

A CO2 diffuser is becoming ever more important as aquarium plants absorb Carbon Dioxide and release Oxygen into the water. This is important as the plants need a constant cycle of this to grow and thrive, which will also keep other inhabitants happy.

The best CO2 diffuser is the Fibst CO2 Diffuser, as it has a robust stainless steel construction that has a U-bend space saving design.

Below is an article on the best CO2 diffusers online for planted aquariums. These include a range of designs that are suitable for a wide variety of tank environments. Make sure you check out its material construction for durability.

CO2 Diffuser For Aquariums Comparison

CO2 DiffusersMaterial TypeTank Size Recommendation
Fibst Steel20 – 65 Gallons
JARDLI Pollen GlassGlass20 – 75 Gallons
Starside Resin10 – 35 Gallons
Jardli With Bubble CounterGlass20 – 75 Gallons
Yagote Glass15 – 50 Gallons
Aquario NeoAcrylic30 – 70 Gallons
Fluval Plastic0 – 20 Gallons
Bluecell Glass15 – 30 Gallons
ISTA TurboGlass15 – 50 Gallons
ST InternationalGlass10 – 45 Gallons

When hunting for the best CO2 diffuser, its important to check for design of the diffuser for space saving and if its transparent so its doesn’t obscure your environment.

In addition to that you should check that it has a removable Ceramic disk for cleaning.

Below is an article on the best CO2 diffuser available to buy today.

The Best CO2 Diffuser for Aquariums


1. Fibst CO2 Diffuser for Aquariums

The best CO2 diffuser for aquariums is the Fibst CO2 diffuser, as it provides a robust stainless steel construction that has a U-bend space saving design.

Moreover the Fibst CO2 diffuser has a removable ceramic disk that is housed in a dome with an open top, this means that you can easily remove the disk for cleaning.

In terms of features of the Fibst CO2 Diffuser, they have:

  • Material Construction: Steel.
  • Recommend Tank Size: 20 – 65 Gallons.
  • Stainless steel tube of 5mm diameter.
  • Diffuser has a 145mm tube with built in U-bend
  • 6 month warranty on disk & 24 month on other parts.

Ultimately if you’re searching for an effective and reliable Carbon Dioxide diffuser then the Fibst cO2 diffuser is an ideal candidate for you, as it has another rigorous and robust design that is produced from long-lasting steel.

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2. JARDLI Pollen Glass CO2 Diffuser 

A notable cO2 diffuser brand is Jardli with their Pollen Glass CO2 Diffuser. This is a great choice for your aquarium as it is has efficient Carbon Dioxide atomisation through ceramic membrane. Moreover it will improve the growth and health of your plants with sufficient Carbon Dioxide supply.

Features of the Jardli Pollen Glass Diffuser, they have:

  • Material Construction: Glass.
  • Recommend Tank Size: 20 – 75 Gallons.
  • High quality glass  tube of 15mm diameter.
  • Fine CO2 bubbles are distributed in the tank and make an optimal CO2 uptake by the water plants.
  • These CO2 diffusers in bowl style dissolve up to 98% of the CO2 running through them.

Overall the Jardli Pollen Glass Carbon Dioxide diffuser is one of the most effective options if you’re in need of a diffuser for the benefit of the health of your plants.

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3. Starside Aquarium Carbon Dioxide Diffuser

The best high-quality Carbon Dioxide diffuser is the Starside Aquarium Carbon Dioxide Regulator, as it is produced from a very durable double-resin glass design. This enables it have high bending resistance.

Other features of the Starside Aquarium Carbon Dioxide Regulator, they have:

  • Material Construction: Resin.
  • Recommend Tank Size: 10 – 35 Gallons.
  • High quality glass tube of 5 mm diameter.
  • Provides a healthy environment for your fishes.
  • Installation is simple as you can use the suction cup to attach it to the side .

Overall the Starside Aquarium Carbon Dioxide Regulator is an awesome choice when it comes to a smaller capacity aquariums of around 10 – 30 gallon sized tanks. This is due to its Resin construction which is durable to bending  and has a suction cup so you can conveniently set it up on the side of the tank.

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4. Jardli Pollen Glass CO2 Diffuser With Bubble Counter

If you’re searching for a more premium option than the Jardli Pollen Glass CO2 Diffuser With Bubble Counter is a great option for your aquarium. This is because of its built in bubble counter, which thus means that there is not a need for separate piece making it easier to use.

Features of the Jardli Pollen Glass CO2 Diffuser With Bubble Counter, they have:

  • Material Construction: Glass.
  • Recommend Tank Size: 20 – 75 Gallons.
  • High quality glass  tube of 20 mm diameter.
  • Efficient CO2 atomisation through ceramic membrane.
  • Built in bubble counter.

Ultimately if you’re searching for a high-quality Carbon Dioxide diffuser for your aquarium that is hassle free and robust then the Jardli Pollen Glass CO2 Diffuser With Bubble Counter is perfect for you, as there’s no need to purchase an additional bubble counter as its all in one bit of kit making setup easier.

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5. Yagote Carbon Dioxide Glass Diffuser

If you’re searching for an effective and compact Carbon Dioxide diffuser then the Yagote CO2 Glass Diffuser would be a great choice for you. This is down to its Ceramic diffuser, along with its atomic pores that produce beneficial bubbles that are perfect for your aquatic plants.

In terms of features of the Fibst Carbon Dioxide Diffuser, they have:

  • Material Construction: Glass.
  • Recommend Tank Size: 15 – 50 Gallons.
  • Glass tube of 5mm diameter.
  • Installation is easy, as it has a suction cup included.
  • See-through glass is blended in the environment of aquarium.

Ultimately if you’re searching for a compact Carbon Dioxide diffuser that is compact and transparent, so it blends into the background of your environment then this is the product for you!

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6. Aquario Neo Carbon Dioxide Diffuser

If you’re searching for a Carbon Dioxide diffuser that provides you with the best all-round value for money, then the best choice for you is the Aquario Neo CO2 Diffuser. This is down to its rigid Acrylic body design that is much tougher than glass and provides you with better flexibility then steel body casings.

Features of the Aquario Neo Carbon Dioxide Diffuser, they have:

  • Material Construction: Acrylic.
  • Recommend Tank Size: 30 – 70 Gallons.
  • Durable Acrylic casing tube of 10mm diameter.
  • Highly porous ceramic disk which diffuses under low pressure as well.
  • Neo diffuser for co2 generates smaller bubbles than them from other glass diffusers

Overall the Aquario Neo is an awesome choice in terms of value for money as it is unrivalled in this manner. Due to its Acrylic construction, you can guarantee that it’ll last you for years to come with no issues at very little cost.

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7. Fluval Ceramic CO2 Diffuser

A great user-friendly option for those who want a simple and easy setup, then the world-renowned aquatic brand Fluval have produced a Ceramic Carbon Dioxide Diffuser. The Fluval Ceramic Diffuser has a simple design that features a round body plastic construction.

Features of the Fluval Ceramic CO2 Diffuser, they have:

  • Material Construction: Plastic.
  • Recommend Tank Size: 0 – 20 Gallons.
  • More effective with smaller capacity systems.
  • Round plastic body with ceramic disk at the center.
  • Simple to install.

Ultimately if you’re searching for a user-friendly Carbon Dioxide diffuser for your aquarium that you know is no hassle and reliable to setup for years to come then the Fluval Ceramic CO2 Diffuser is a perfect option for you! It will ensure that you have a happy and healthy aquatic environment with little effort input from yourself.

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8. Bluecell Aquarium Carbon Dioxide Diffuser

If you’re searching for another great all-rounder in terms of quality, price and effectiveness then the Bluecell Aquarium CO2 Diffuser is another great option that you could purchase. This is because the flow of Carbon Dioxide cannot be easily blocked due to its built-in bubble counter that’s well-constructed similar to the Jardli as previously mentioned.

In terms of features of the Bluecell Aquarium CO2 Diffuser, they have:

  • Material Construction: Glass.
  • Recommend Tank Size: 15 – 30 Gallons.
  • Suction cup included for installation.
  • High bending resistance.
  • Built in bubble counter.

Ultimately this is a great option for anyone who wants an effective Carbon Dioxide diffuser for keeping their inhabitants and plant species happy and healthy for no issues.

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9. ISTA Turbo External CO2 Diffuser

The best external CO2 Diffuser is the ISTA Turbo CO2 Reactor. The benefit of having an external CO2 diffuser is that it means that it does not sacrifice any space in the actual aquarium, meaning that there’s more room for plants and other objects for your habitat.

In terms of features of the ISTA Turbo CO2 External Reactor Diffuser, they have:

  • Material Construction: Glass.
  • Recommend Tank Size: 15 – 50 Gallons.
  • Patented impeller design completely crushes the CO2 bubbles.
  • Durable to acidity and impact resistant.
  • Designed to prevent CO2 gas from collecting at the top.

Ultimately if you’re looking to save space in your aquarium with a professional level Carbon Dioxide external diffuser that is used by aquatic professionals that use them for aquarium exhibits and zoos.

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10. ST International Diffuser for Carbon Dioxide

If you’re searching for a very effective and efficient distributor of Carbon Dioxide, then the ST International Disffuser is the product for you. This is down to its high-quality construction that provides an optimum CO2 diffusion effect.

Other features of the ST International Diffuser, they have:

  • Material Construction: Glass.
  • Recommend Tank Size: 10 – 45 Gallons.
  • Can guarantee maximum CO2 diffusion effect
  • Simple to use.
  • Low maintenance.

Overall if you’re a newbie at building aquariums at you want a Carbon Dioxide diffuser that is simple to use with no complicated setup issues, then the ST International Disffuser is the product for your tank setup.

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Conclusion

Overall hunting for the best Carbon Dioxide diffuser can be time-consuming because you have to factor such areas like what type of aquatic plants you have and its needs for development. CO2 diffusers have many different properties that can effect different aquariums in many ways. This is due to them have different levels outputs in regard to their ability to produce Carbon Dioxide for your plants.

This means that you should check out a Carbon Dioxide diffuser’s design as you want it to be space saving. All of the suggestions that are covered in this article cover many price ranges, aquarium types and plant species.

About The Author

the aqua guru author

Jon is an aquarium keeper of over 15 years and the owner of Guppy's, Betta's and other marine life. He always likes to make changes to his aquarium for the benefit of his marine life's well-being and health using the best aquatic products on the market. You can read more about us here.