In-Tank CO2 Diffuser Comparison!

Sep 11 2018 0 Comments co2 tips video


With so many diffusers on the market today, it can be difficult to choose what type will work with your planted tank setup. The short video above quickly covers 3 different types that are popular and commonly used today.

Let's take a closer look at the 3 types covered in the video. First, we have the classic glassware pieces

Glass CO2 Diffusers

These diffusers come in a variety of sizes and shapes meant to cater to factors such as aquarium tank size and aesthetic. Being made from glass, these CO2 diffusers are sleek and are meant to blend into a planted tank with seldom obstruction of view due to excess aquarium equipment. These CO2 diffusers are for you if you're looking for great CO2 diffusion but would like to keep your planted tank as clean and free of equipment looking as possible. Glass CO2 diffusers also come in a variety of shapes to fit the look you like best. The only downside (this part is subjective), is that they should be handled with care and can be prone to breakage when performing maintenance.  

Next, we have the NEO CO2 Diffuser by Aquario. 

Aquario Neo CO2 Diffuser

These diffusers have quickly gained hype within the aquarium hobby. These CO2 diffusers provide a clean look but do have a noticeable color and aren't as invisible when compared to full glass CO2 diffuser options. To make up for this, the Aquario Neo CO2 diffusers provide a very fine mist and are made from almost unbreakable acrylic making them very durable and long lasting through maintenance. Although they are not available in different styles, they are available in various sizes to accommodate all tank sizes from nano tanks to larger standard tank sizes. 

Last but certainly not least, we covered the Precision CO2 Aquarium Atomizers

Precision CO2 Aquarium Atomizer

These CO2 diffusers are for the more experienced and technical aquarium hobbyists. They provide extremely fine CO2 bubbles less than 0.1mm in diameter and have particular requirements for use. Professional pressure proof CO2 tubing is recommended as this product requires 30PSI working pressure. Care should also be taken not to touch the ceramic part. As this part is fully exposed, it can be more difficult to avoid when performing maintenance. Available in 3 standard sizes, this CO2 diffuser is a great item to have but doesn't match up in aesthetics when compared to the prior options. 


Although there are more diffusers on the market, these three are amongst the best diffusers with solid performance and great price. Before choosing one, you should also make sure that you have all the necessary equipment for a planted tank CO2 setup. Check out a previous post we did, here, discussing all the essential parts you'll need to inject CO2 properly and efficiently into your planted aquarium. 

CO2 injection may seem intimidating in the beginning, but once you learn about all the working parts, it's easy and your planted tank will thank you for it! Good luck! :P


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