If you are running a deeper rimless tank or a setup with serious vertical height, getting your gas all the way down to the substrate can mean running a messy trail of flexible tubing straight down your display glass. The Aquario Neo CO₂ Extended Special Diffuser solves this beautifully by giving you a super-extended tube. This allows you to position the diffuser head exactly where you want it without running flexible lines inside the tank. Even better, the Special series completely strips away the built-in bubble counter for an ultra-streamlined, low-profile look.
Key Features & Benefits
An extra-long 15.65-inch tube easily reaches the bottom of deep aquariums, ensuring your gas dissolves thoroughly before hitting the surface.
The minimalist Special design completely removes the built-in bubble counter for a sleek, low-profile look that keeps the focus on your aquascape.
The heavy-duty acrylic construction is shatterproof, giving you a worry-free alternative to notoriously fragile glass diffusers.
The extended acrylic body can be gently heated and custom-bent to fit your exact tank rim profile perfectly.
When it comes to plant growth, bubble size is everything. Under 150x magnification, the Aquario Neo ceramic disc reveals thousands of ultra-porous nanoholes that outclass standard name-brand glass diffusers.
Technical Specifications
Size
Disk Size
Tube Height
Tank Size
Small
12mm
15.65 inches
13 gallon or less
Medium
17mm
15.65 inches
Up to 32 gallons
Large
24mm
15.65 inches
32 gallons or larger
Additional Information
Submerge the entire diffuser in clean water for 30 minutes before connecting it to your gas line. This primes the micro-pores of the ceramic membrane, ensuring it produces a fine mist instantly on startup rather than large, wasteful bubbles.
Over time, natural organic film or algae can accumulate on the ceramic surface, causing the bubbles to grow larger. When this happens, simply soak the diffuser in standard household bleach for 10 minutes, then rinse it thoroughly with fresh water and a generous dose of aquarium water conditioner to completely neutralize any residual bleach before placing it back in your tank.
What’s in the Box?
1x Aquario Neo CO₂ Extended Special Diffuser
2x Clear Suction Cups
Team Buce Plant Tips
Fine-tuning your CO₂ setup can seem intimidating at first, but the process is far simpler than it appears. For a safe and reliable introduction, refer to our guide on How to Add CO₂ to Your Planted Aquarium. And if you’re curious about the science behind why CO₂ makes your buce, stems, and carpets thrive, explore The Mysteries of CO₂ in a Planted Tank Explained for a clear breakdown.
Overall rating: 4.595238 / 5 from 126 reviews.
AI Generated Review Summary
The Aquario Neo CO2 Extended Special Diffuser is praised for its perfect size and clean look, offering a fine mist of bubbles for better CO2 dissolution. Customers appreciate the fast shipping and the acrylic material's durability. However, opinions on bending the diffuser and the tubing's flexibility are mixed, and some have experienced issues with bubble production.
Summary topics
Size Appropriateness (15%): A significant amount of customers expressed appreciation for the perfect size of the product for their tanks.
Aesthetic Appeal (13%): Customers keep praising the look of this diffuser, describing it as great, clean, and minimalistic.
Shipping Speed (8%): Customers raved about the fast shipping and timely delivery of the product, with no negative reviews mentioned.
Bubble Production (30%): Customers expressed differing viewpoints regarding bubbles produced by this diffuser, with some finding it effective while others experienced issues.
"Great product tiny bubbles, sleek look, just the right size" — Brandon J.
"Almost completely eliminated the amount of larger bubbles with no adjustments to my regulator." — Sean L.
"I like the looks of it very clean, bubbles are very fine and disperse nicely in the tank." — Kelvin W.
Reviews
Extended nano co2 diffusers
"Broke my diffusor while doing tank maintenance 🙃 needed a new one. I saw these on sale so I bought two medium and two large. The medium replaced my broke one perfectly and the tube heating/bending helped me place it for a professional looking placement. Glad I found these and Buce got them sent out quickly 🙌 which helped me get my tank back up and running with CO2."
— Mrs. B. (5/5)
Replacement
"My aeration stone broke off while I was bending the tubing. I tried fixing it but not much luck. I wrote customer service and was told there was no warranty. A few days later a replacement arrived in the mail. I hope I’m not getting someone in trouble but I couldn’t be happier."
— Todd J. (5/5)
Great products with fast shipping.
"Great products with fast shipping. Will order again in future."
— Rene C. (5/5)
Works perfectly
"Works really well. The heating and bending process was easy. Thank you for the extra tubes for use as practice bending. The customer service response when I emailed with a question was exceptional. I am ordering a second diffuser today for my new 15 gallon tank."
— Brian D. (5/5)
Worked Great
"Worked great, tube bent easily when heated and stone produces very fine bubbles"
— Michael (5/5)
Great diffuser
"Great product and service"
— Stephen W. (5/5)
Wonderful
"This works so much better than my last one. Bubbles are tiny and co2 lasts longer. Great price too!"
— Shane h. (5/5)
Omg what small bubbles you have!
"Do yourself and your plants a huge favor and use only these diffusers. Durable and impeccable performance."
— Jerry N. (5/5)
"I was unaware this product would require some degree of fabrication. As it was delivered it is unable to be used in my aquarium. While beautiful, it will need to bent into shape. There are additional pieces included in the packaging - but no instructions included about how exactly to do so, or for what the additional pieces are included."
— Grace (4/5)
"Awesome"
— Mike (5/5)
Q&A
Would this diffuser work with a DIY sugar/yeast CO2 system?
Hi Maria, Thank you for reaching out to us. This diffuser should be compatible with most CO2 systems, even DIY/yeast ones. Feel free to contact us at support@buceplant.com for any questions or concerns. We are happy to help! Best regards, Buceplant Team
How long is it
Hi Kevin, Thank you for reaching out to us! The Aquario NEO CO2 Extended Special Diffuser-Acylic is 15.65" in length for all sizes. The tube can be bent to the desired length. Feel free to contact us at support@buceplanthelp.zendesk.com for any additional questions or concerns. We are always happy to help! Best Regards, Buceplant Team
Does the glass diffuser fit CO2 Airline
Hi Kevin, Thank you for reaching out to us! The glass diffuser should fit normal standard CO2 tubing. Feel free to contact us at support@buceplanthelp.zendesk.com for any additional questions or concerns. We are always happy to help! Best Regards, Buceplant Team
how long is the stem on the diffuser?
Hi Brandon, Thank you for reaching out to us! The stem is about 15.5 inches long. Being the extended version, you will be able to control the length of the tube by bending the tube at your desired length. Best Regards, Buceplant Team
How many mm diameter is this? What size tubing fits it?
Hi Nick, Thank you for reaching out to us. The standard CO2 tubing will fit the Aquario NEO CO2 Extended Special Diffuser - Acrylic. The CO2 tubing that we sell on the site has a diameter: 4mm inner / 6mm outer. Best Regards, Buceplant Team
